159. aitios
Lexical Summary
aitios: Responsible, cause, guilty

Original Word: αἴτιος
Part of Speech: Adjective
Transliteration: aitios
Pronunciation: AHY-tee-os
Phonetic Spelling: (ah'-ee-tee-os)
KJV: author
Word Origin: [of the same uncertain derivation as G154 (αἰτέω - ask)]

1. causative
2. (concretely) a causer (i.e. initiator)

Strong's Exhaustive Concordance
author.

From the same as aiteo; causative, i.e. (concretely) a causer -- author.

see GREEK aiteo

Thayer's Greek Lexicon
STRONGS NT 159: αἴτιος

αἴτιος, , , that in which the cause of anything resides, causative, causing. Hence,

1. αἴτιος the author: σωτηρίας, Hebrews 5:9 (the same phrase is frequent in secular writings; cf. the opposite αἴτιος τῆς ἀπωλείας in Bel and the Dragon, verse ; τῶν κακῶν, 2 Macc. 13:4; Lucian, Tim. 36, Lipsius edition; τῶν ἀγαθῶν, Isocr. ad Phil. 49, p. 106 a.; cf. Bleek on Heb. vol. 2:2, p. 94f.).

2. τό αἴτιον equivalent to αἰτία; cause: Acts 19:40 (cf. Buttmann, 400 (342) n.).

b. crime, offence: Luke 23:4, 14, 22. (αἴτιος culprit.) (See αἰτία, 3.)

Topical Lexicon
Strong’s Greek 159 — αἴτιος / αἴτιον

General sense and semantic field

The term denotes that which is responsible for an action or condition: a cause, ground, reason, charge, or guilt. It can describe the factual basis in a legal setting, personal culpability, or, positively, the originating source of blessing.

Usage in the passion narrative (Luke 23:4, 14, 22)

Luke records Pilate’s repeated verdict that Jesus was innocent of any “cause” for punishment.
Luke 23:4: “I find no basis for a charge against this man.”
Luke 23:14: “I have found no basis for your charges against Him.”
Luke 23:22: “I have found in Him no reason to deserve death.”

In each instance αἴτιον underscores the legal nullity of the accusations. The word places the spotlight on Christ’s blamelessness, fulfilling prophetic expectation that the Servant would suffer though “he had done no violence, nor was any deceit in His mouth” (Isaiah 53:9).

Christological significance

1. Innocence of the Substitute: The absence of any αἴτιον against Jesus validates His qualification as the spotless Lamb (1 Peter 1:19). He bears sin not for personal guilt but vicariously for others (2 Corinthians 5:21).
2. Human culpability: While earthly authorities acknowledged no legitimate αἴτιον, they nevertheless delivered Him up, revealing the depth of human sin (Acts 3:13-15).

Hebrews 5:9 — Christ the Source of Eternal Salvation

“And having been made perfect, He became the source of eternal salvation to all who obey Him.”

Here αἴτιος shifts from legal innocence to constructive agency. Jesus is not merely free from blame; He is the effective cause of everlasting deliverance. The verse stands at the intersection of His completed obedience (“made perfect”) and His ongoing priestly ministry. αἴτιος conveys that salvation is not self-generated by believers but proceeds entirely from the finished work of the Son.

Acts 19:40 — Civic accountability

“For we are in jeopardy of being charged with rioting for today’s events, since there is no cause we can present to justify this commotion.”

The town clerk recognizes that without a defensible αἴτιον, the assembly’s disorder invites Roman censure. The verse illustrates the broader Greco-Roman legal backdrop in which αἴτιος/αἴτιον functioned as technical terminology for a legally sustainable ground of action.

Theological threads

• Divine justice: Scripture consistently demands a real αἴτιον before condemnation (Deuteronomy 17:6). Pilate’s testimony highlights the miscarriage of justice that became God’s instrument for redemption (Acts 2:23).
• Sovereignty and causality: In Hebrews 5:9 Christ is the ultimate αἴτιος, reinforcing that salvation has a singular, sufficient origin.
• Human responsibility: Acts 19:40 reminds readers that lacking a rightful αἴτιον places people under potential judgment, a motif echoed in Romans 1:20 regarding mankind’s inexcusability before God.

Practical ministry implications

1. Apologetics: Present Christ as the sinless One—no legitimate αἴτιον for His death except the predetermined plan of God (1 Peter 2:22-24).
2. Assurance: Believers rest on a salvation whose αἴτιος is Christ Himself, guaranteeing permanence (“eternal salvation”).
3. Ethics and justice: Leaders must ensure that accusations in the church or society are supported by a valid αἴτιον, reflecting God’s standard of righteous judgment.

Summary

Strong’s Greek 159 portrays both the absence of legitimate grounds for condemning Jesus and His positive role as the effective cause of eternal salvation. The word moves from courtroom negation in Luke to redemptive affirmation in Hebrews, and to civic caution in Acts, weaving a coherent biblical testimony to Christ’s innocence, agency, and believers’ accountability before God.

Forms and Transliterations
αιτιον αἴτιον αιτιος αἴτιος αιτιου αἰτίου αιτιώματα aition aítion aitios aítios aitiou aitíou
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Interlinear GreekInterlinear HebrewStrong's NumbersEnglishman's Greek ConcordanceEnglishman's Hebrew ConcordanceParallel Texts
Englishman's Concordance
Luke 23:4 Adj-ANS
GRK: Οὐδὲν εὑρίσκω αἴτιον ἐν τῷ
INT: Nothing find I faulty in the

Luke 23:14 Adj-ANS
GRK: ἀνθρώπῳ τούτῳ αἴτιον ὧν κατηγορεῖτε
INT: man this faulty [as to the things] of which you bring accusation

Luke 23:22 Adj-ANS
GRK: οὗτος οὐδὲν αἴτιον θανάτου εὗρον
INT: this [man] No cause of death found I

Acts 19:40 Adj-GNS
GRK: σήμερον μηδενὸς αἰτίου ὑπάρχοντος περὶ
NAS: events, since there is no [real] cause [for it], and in this
INT: this day not one cause existing concerning

Hebrews 5:9 Adj-NMS
GRK: ὑπακούουσιν αὐτῷ αἴτιος σωτηρίας αἰωνίου
NAS: who obey Him the source of eternal
KJV: he became the author of eternal
INT: obey him author of salvation eternal

Strong's Greek 159
5 Occurrences


αἴτιον — 3 Occ.
αἴτιος — 1 Occ.
αἰτίου — 1 Occ.

158
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