Causal ὅτι
**Causal ὅτι** introduces a reason ('because'), as in Matthew 5:10. Distinguish this from **content ὅτι** ('that'), as in John 11:27, and **direct-quotation ὅτι**, as in Mark 1:15. These are three important NT uses; see Chapter 58. A reason for calling someone blessed is not automatically a claim about a physical cause.
John 3:16 contains γάρ, ὥστε, and ἵνα in the teaching text, but no ὅτι. It therefore cannot illustrate causal ὅτι. Determine the connective actually present, then its relation to the surrounding assertion.
**Matthew 5:10, excerpt** — **ὅτι αὐτῶν ἐστιν ἡ βασιλεία τῶν οὐρανῶν** ("because theirs is the kingdom of heaven"). The clause gives the reason for the preceding pronouncement of blessedness. ἐστιν is present indicative.
**John 11:27, excerpt** — **ἐγὼ πεπίστευκα ὅτι σὺ εἶ ὁ Χριστὸς** ("I have believed that you are the Christ"). The ὅτι-clause supplies the content of belief, not its cause.
**Mark 1:15, excerpt** — **καὶ λέγων ὅτι πεπλήρωται ὁ καιρὸς** ("and saying, “The time has been fulfilled”"). ὅτι introduces direct speech, which continues into imperatives in the verse. English can represent this use by punctuation rather than by “because” or “that”.
διότι
**διότι** can introduce a reason ('because/since'). In Luke 1:13 it grounds the instruction not to fear; Romans 1:19 supplies a Pauline argumentative example. It should not be confined to narrative or reported speech. Nor does its historical relationship to διά and ὅτι establish an automatic degree of causal intensity. Identify the reason being offered and what it supports.
**Luke 1:13, excerpt** — **διότι εἰσηκούσθη ἡ δέησίς σου** ("because your prayer has been heard"). The reason supports the preceding reassurance and prohibition of fear. εἰσηκούσθη is aorist passive indicative, third singular.
**Romans 1:19, excerpt** — **διότι τὸ γνωστὸν τοῦ Θεοῦ φανερόν ἐστιν ἐν αὐτοῖς** ("because what is known of God is evident among them"). διότι contributes a reason in an argument. This is not a narrative-only conjunction.
ἐπεί
**ἐπεί** has causal and temporal uses; do not attach a temporal nuance to every causal occurrence. In Luke 1:34 it gives the ground for Mary's question. In Hebrews 9:26 it introduces the consequence that would follow from an alternative rejected by the surrounding argument, naturally rendered 'otherwise/for then'. The latter is not an assertion that repeated suffering actually occurred.
Indicative morphology alone does not determine whether a clause describes an actual event, states a reason, or participates in reasoning about an unreal alternative. The lexical sense and discourse relation must be identified together.
**Luke 1:34, excerpt** — **πῶς ἔσται μοι τοῦτο, ἐπεὶ ἄνδρα οὐ γινώσκω;** ("How will this happen to me, since I do not know a man?"). The causal clause supplies the ground for asking the question, not a temporal “when” clause.
**Hebrews 9:26, excerpt** — **ἐπεὶ ἔδει αὐτὸν πολλάκις παθεῖν ἀπὸ καταβολῆς κόσμου** ("for then he would have had to suffer many times from the foundation of the world"). ἔδει is imperfect active indicative, third singular, of impersonal δεῖ. The unreal consequence is understood from the argument; no ἄν occurs in this excerpt.
ἐπειδή
**ἐπειδή** can introduce a reason ('since/because'); temporal senses also belong to its range in Greek. Its historical formation with δή does not justify treating every occurrence as a stronger or more intense ἐπεί. Acts 13:46 provides an actual causal example: the speakers give grounds for turning to the Gentiles.
Acts 13:36 contains γάρ rather than ἐπειδή. It is not a positive example of this conjunction. Avoid replacing attested wording with a different connective simply because an English translation could use 'for' or 'since'.
**Acts 13:46, excerpt** — **ἐπειδὴ δὲ ἀπωθεῖσθε αὐτὸν καὶ οὐκ ἀξίους κρίνετε ἑαυτοὺς τῆς αἰωνίου ζωῆς, ἰδοὺ στρεφόμεθα εἰς τὰ ἔθνη.** ("but since you reject it and judge yourselves unworthy of eternal life, look, we are turning to the Gentiles"). The coordinated indicative predicates give the stated grounds for the ensuing decision. This is a syntactic description of the speakers’ argument, not an independent theological classification.
Causal Participles
A **circumstantial participle** may give a reason. In Matthew 22:29, μὴ εἰδότες explains the error expressed by πλανᾶσθε. The causal interpretation follows from the relation between not knowing and being mistaken; no special 'causal' participial ending exists.
Do not infer cause merely from an English 'having ...', an aorist form, or a theological account of how salvation occurs. A participle may instead be temporal, concessive, or otherwise circumstantial. Parse it first, then justify the proposed relation from its sentence; see Chapter 38.
**Matthew 22:29, excerpt** — **πλανᾶσθε μὴ εἰδότες τὰς γραφὰς μηδὲ τὴν δύναμιν τοῦ Θεοῦ.** ("You are mistaken because you do not know the Scriptures or the power of God"). εἰδότες is perfect active participle, nominative masculine plural, of οἶδα, with present-state meaning. It refers to the understood plural subject of πλανᾶσθε. The English “because” makes the contextually supported causal relation explicit.
Concessive Clauses
A **concessive relation** holds when a circumstance might suggest a contrary conclusion, yet the associated assertion still stands. English may use 'although/even though' for an acknowledged circumstance or 'even if' for a hypothetical one. Concession does not by itself prove that a condition is actual.
Conditional patterns with εἰ or ἐάν and καί can express concession. Their verb forms belong to the conditional construction (Chapter 57). **καίπερ + participle** is non-finite and must be distinguished from these finite clauses. In all cases, examine the particular circumstance, its status in the discourse, and the assertion made despite it.
καίπερ
**καίπερ** explicitly marks concession with a participle, naturally translated 'although'. In Hebrews 5:8, ὢν is a participle and ἔμαθεν is the finite main verb. This construction need not be assigned a fixed degree of emphasis or treated as a separate finite mood.
The grammatical relation is that sonship does not exclude the learning described. Further theological conclusions require interpretation beyond classifying the construction.
**Hebrews 5:8, excerpt** — **καίπερ ὢν υἱός, ἔμαθεν ἀφ᾽ ὧν ἔπαθε τὴν ὑπακοήν** ("although he was a son, he learned obedience from what he suffered"). ὢν is present active participle, nominative masculine singular; ἔμαθεν is second-aorist active indicative, third singular. The saved HBS BYZ04 wording has ἔπαθε, without movable ν.
εἰ καί
**εἰ καί** often expresses concession, but its word order does not guarantee the English 'although' or the actuality of the condition. In 2 Corinthians 7:8 the surrounding discussion concerns sorrow the letter caused. In 1 Peter 3:14, **εἰ καὶ πάσχοιτε** presents a hypothetical condition and is naturally translated 'even if you should suffer'.
Identify the finite verb and the contextual force. Καί can focus a constituent or contribute concession; its position is relevant, but a rigid εἰ καί = fact / καὶ εἰ = supposition rule does not fit these usages.
**2 Corinthians 7:8, excerpt** — **εἰ καὶ ἐλύπησα ὑμᾶς ἐν τῇ ἐπιστολῇ, οὐ μεταμέλομαι** ("although I caused you sorrow by the letter, I do not regret it"). ἐλύπησα is aorist active indicative, first singular. The wider sentence discusses the sorrow caused and a change of attitude; do not infer actuality from εἰ καί alone.
**1 Peter 3:14, excerpt** — **ἀλλ᾽ εἰ καὶ πάσχοιτε διὰ δικαιοσύνην, μακάριοι.** ("but even if you should suffer for righteousness, you are blessed"). πάσχοιτε is present active optative, second plural. μακάριοι supplies a verbless main predication with the subject understood. This is a complete concessive conditional, not a fragment awaiting another clause.
καὶ εἰ, καὶ ἐάν, and κἄν
**καὶ εἰ** can express 'even if'; **καὶ ἐάν**, including contracted **κἄν**, also occurs in concessive conditional constructions. Καί may instead coordinate ('and if') where context supports that reading. Word order and scope matter, but they do not create an exceptionless contrast with εἰ καί.
Matthew 26:35 supplies an actual **κἄν + subjunctive** example. It illustrates contracted καὶ ἐάν, not the bare words καὶ εἰ. The following οὐ μή belongs to Peter's emphatic denial in the main clause. Distinguish speaker commitment from what the narrative later reports.
**Matthew 26:35, excerpt** — **κἂν δέῃ με σὺν σοὶ ἀποθανεῖν, οὐ μή σε ἀπαρνήσομαι.** ("Even if I must die with you, I will certainly not deny you"). δέῃ is present active subjunctive, third singular, of impersonal δεῖ; με is the accusative subject of aorist active infinitive ἀποθανεῖν. ἀπαρνήσομαι is future middle indicative, first singular, with οὐ μή. The concessive relation is not a claim that the condition will necessarily occur.
Concessive Participles
A participle can express a **concessive circumstance** with or without an explicit concessive particle. In 1 Corinthians 9:19, being free stands in contrast to making oneself a slave to all. This supports 'although I am free'. The nominative participle agrees with the subject of the finite verb; it does not acquire the finite verb's mood.
Compare the explicit καίπερ construction in Hebrews 5:8 (§60.7). Present participial morphology alone does not distinguish causal, temporal, or concessive function.
**1 Corinthians 9:19, excerpt** — **Ἐλεύθερος γὰρ ὢν ἐκ πάντων πᾶσιν ἐμαυτὸν ἐδούλωσα** ("For although I am free from all, I made myself a slave to all"). ὢν is present active participle, nominative masculine singular, of εἰμί; ἐδούλωσα is aorist active indicative, first singular. The concessive interpretation follows from their contextual contrast, without καίπερ.
Comparative Clauses
**Comparative constructions** relate an action, quality, or situation to another as a model or point of comparison. ὡς, ὥσπερ, and καθώς are important markers. Some comparisons contain finite clauses; others have nominal expressions or leave material unexpressed. It is therefore misleading to define all comparisons as 'conjunction + indicative or subjunctive'.
Ask what is being compared and in what respect. Similarity does not establish identity of every feature, causal dependence, or an independently encoded theological conclusion. The mood of a finite verb belongs to its particular construction.
**Matthew 10:16, excerpt** — **γίνεσθε οὖν φρόνιμοι ὡς οἱ ὄφεις καὶ ἀκέραιοι ὡς αἱ περιστεραί.** ("Therefore be prudent as serpents and innocent as doves"). The comparisons have nominal expressions after ὡς, without an overt finite verb of their own. Different qualities are selected for comparison; neither comparison transfers every characteristic of the animal.
ὡς
**ὡς** is multifunctional. A comparative expression may mean 'as'; a temporal clause may mean 'when/while'; a reporting context may support 'how/that'. Do not classify every ὡς by its dictionary gloss alone. In 1 Corinthians 13:11, ὡς νήπιος describes the manner of speaking, while ὅτε introduces the temporal setting. Luke 24:32 instead has temporal ὡς with imperfect indicative.
The schematic correlative **ὡς ... οὕτως** means 'as ... so', but comparative ὡς does not require an expressed οὕτως. See Chapter 59 for temporal uses and Chapter 62 for reporting constructions.
**1 Corinthians 13:11, excerpt** — **ὅτε ἤμην νήπιος, ὡς νήπιος ἐλάλουν** ("when I was a child, I spoke as a child"). ὅτε frames the time; ὡς introduces the comparison with a child’s manner of speaking. νήπιος is nominative; ἐλάλουν is imperfect active indicative, first singular.
**Luke 24:32, excerpt** — **ὡς ἐλάλει ἡμῖν ἐν τῇ ὁδῷ** ("while he was speaking to us on the way"). Here the ὡς-clause locates the hearers’ experience during his speaking. Its function is temporal, not the nominal comparison found in 1 Corinthians 13:11.
ὥσπερ
**ὥσπερ** introduces an explicit comparison, commonly rendered 'just as'. It may pair with **οὕτω/οὕτως** ('so') in a correlative structure. The translation 'just as' does not establish equivalence in every respect or a fixed scale of emphasis relative to ὡς.
Romans 5:19 presents both halves of a comparison. Identify what is parallel and what differs: the first half has aorist passive κατεστάθησαν, the second future passive κατασταθήσονται. Grammatical parallelism does not erase those forms or settle every interpretive question about the comparison's scope.
**Romans 5:19, excerpt** — **ὥσπερ γὰρ διὰ τῆς παρακοῆς τοῦ ἑνὸς ἀνθρώπου ἁμαρτωλοὶ κατεστάθησαν οἱ πολλοί, οὕτω καὶ διὰ τῆς ὑπακοῆς τοῦ ἑνὸς δίκαιοι κατασταθήσονται οἱ πολλοί.** ("For just as through the disobedience of the one man the many were constituted sinners, so also through the obedience of the one the many will be constituted righteous"). The saved text has οὕτω, without final ς. Both predicates are passive indicative, third plural, but their tense-forms differ. The correlative marks the stated correspondence, not unrestricted identity.
καθώς
**καθώς** introduces a comparison or correspondence ('as/just as') in John 15:9. The first clause provides the comparison for the following assertion. **κἀγώ** is crasis of καὶ ἐγώ; in this sentence 'I also' is a natural rendering. There is no expressed οὕτως in the verse.
Both verbs of loving are aorist active indicative: third singular ἠγάπησε with the Father as subject, then first singular ἠγάπησα with Jesus as speaker. The additional accent in ἠγάπησέ accompanies enclitic με. English may use 'loved' or 'have loved' according to context; the Greek forms are not perfect indicatives.
**John 15:9, excerpt** — **καθὼς ἠγάπησέ με ὁ πατήρ, κἀγὼ ἠγάπησα ὑμᾶς** ("Just as the Father has loved me, I also have loved you"). The source order is ἠγάπησα ὑμᾶς. The comparative relation does not depend on inserting οὕτως or reversing the object and verb.
Comparative Correlatives
A **comparative correlative** pairs a comparison with its application: schematically **ὡς ... οὕτως** or **ὥσπερ ... οὕτω/οὕτως** ('as/just as ... so'). Romans 5:19 has two overt finite predicates. A different pattern appears in 2 Corinthians 1:7, where the second member leaves shared predicative material unexpressed.
Preserve the actual wording of the source: this chapter's Romans 5:19 and 2 Corinthians 1:7 have οὕτω. John 15:9 shows that a comparison does not require an overt 'so'. Correlation establishes the contextual correspondence; it does not by itself determine its full theological or logical extent.
**2 Corinthians 1:7, excerpt** — **ὥσπερ κοινωνοί ἐστε τῶν παθημάτων, οὕτω καὶ τῆς παρακλήσεως.** ("just as you are sharers in the sufferings, so also in the consolation"). The second member has no repeated κοινωνοί ἐστε; the shared predicate is understood. This teaching edition has ὥσπερ ... οὕτω here; do not substitute a different edition’s ὡς ... οὕτως.
Paradigms
Causal, Concessive, and Comparative Constructions
Representative markers and constructions. Determine function from syntax and context; distinguish finite clauses, participles, and comparisons without an overt finite verb.
| Relation | Markers / constructions | Interpretation and limits |
| Causal | ὅτι, διότι, ἐπεί, ἐπειδή in causal finite clauses; contextual participial uses | Because/since: cause or reason for an assertion, question, or directive. Other uses of a marker must be distinguished. |
|---|---|---|
| Concessive | εἰ καί; καὶ εἰ; καὶ ἐάν / κἄν; καίπερ + participle; contextual participles | Although/even if: acknowledged or hypothetical circumstance. Word order alone does not establish actuality; finite conditionals and participles are different constructions. |
| Comparative | ὡς, ὥσπερ, καθώς; sometimes paired with οὕτω/οὕτως | As/just as: finite clauses, nominal expressions, or ellipsis. Identify the relevant correspondence; comparison does not require identity in all respects. |
Chapter glossary
- ὅτι — that, because
hoti
conjunction
Introduces a reason ('because'), reported content ('that'), or direct quotation. Matthew 5:10 is causal; John 11:27 gives content; Mark 1:15 introduces direct speech. Syntax and discourse decide the use; see Chapter 58.- ἐπεί — since, because, when
epei
conjunction
Used causally ('since/because') and temporally ('when/after'). A causal use need not retain a temporal nuance. Hebrews 9:26 illustrates reasoning rendered 'otherwise/for then'; the whole argument determines the relation.- ἐπειδή — since, because
epeidē
conjunction
Introduces a reason ('since/because'), as in Acts 13:46; temporal senses also occur in Greek. Historical composition does not establish greater causal intensity than ἐπεί in every occurrence.- καθώς — just as, even as
kathōs
conjunction
Introduces comparison or correspondence ('as/just as'), as in John 15:9. Identify the point of comparison from context. That verse has κἀγώ in the associated assertion, without an expressed οὕτως.- ὥσπερ — just as
hōsper
conjunction
Introduces an explicit comparison ('just as'), often paired with οὕτω/οὕτως ('so'). The marker does not establish identity in every respect or determine the comparison's entire scope independently of context.- καίπερ — although (+ participle)
kaiper
conjunction
Concessive marker used with a participle, as in Hebrews 5:8: 'although he was a son'. The participle is non-finite; the associated finite predicate supplies the main assertion. No fixed degree of emphasis follows from the particle alone.- — causal clause
syntax
A clause giving a cause or reason, including a reason for an assertion, question, or directive. NT finite examples use ὅτι, διότι, ἐπεί, and ἐπειδή; causal circumstances can also be expressed non-finitely. Identify the asserted relation from context.- — concessive clause
syntax
A clause presenting a circumstance despite which another assertion holds, or a condition under which it would still hold. Distinguish acknowledged 'although' from hypothetical 'even if' by construction and context. Concession can also be expressed by a participle.- — comparative clause
syntax
A clause expressing comparison or correspondence with another situation. Related comparative constructions can instead have nominal expressions or ellipsis. ὡς, ὥσπερ, and καθώς must be interpreted in their actual construction and context.