Titus 1:2

ἐπʼ ἐλπίδι κ. τ. λ.: This is best taken in connexion with the preceding clause, κατὰ πίστιν … κηρύγματι. The faith and the knowledge there spoken of have as their basis of action, or energy, the hope of eternal life. Cf. 1 Timothy 1:16. Compare the use of ἐπʼ ἐλπίδι in Acts 26:6; Romans 4:18; Romans 8:20; 1 Corinthians 9:10. On the other hand, we must not exclude a remoter connexion with ἀπόστολος. A comparison of the parallel passage in 2 Timothy 1:1 suggests that the succession of clauses here, κατὰ πίστιν … κηρύγματι, is a full and detailed expansion of κατʼ ἐπαγγελίαν … ἐν Χρ. Ἰησ.

ἀψευδής : qui non mentitur. See note on 2 Timothy 2:13.

ἐπηγγείλατο : See Romans 1:1; Romans 4:21; Galatians 3:19.

ἐπηγγείλατο … πρὸ χρόνων αἰωνίων, ἐφανέρωσεν δέ : The same antithesis is expressed in 2 Timothy 1:9-10 (q.v.); Romans 16:25; Colossians 1:26. From different points of view, one may say that eternal life was promised, and given, to man in Christ before times eternal; though the revelation of this purpose and grace could not be made until man was prepared to receive it, καιροῖς, at seasons, occasions, epochs of time as relative to man's comprehension.