Διωγμός persecution, only here in Pastorals. Occasionally in Paul. Πάθημα, only here in Pastorals. Often in Paul, usually in the sense of sufferings, but twice of sinful passions, Rom 7:5; Gal 5:24.
Antioch, Iconium, Lystra
See Act 13:50; Act 14:2 ff.; Act 14:19. These cities may have been selected as illustrations because Timothy was at home in that region. See Act 16:1, Act 16:2. Antioch is mentioned by Paul, Gal 2:11. Iconium and Lystra nowhere in his letters.
Delivered (ἐρύσατο)
Often in Paul. Originally, to draw to one's self; to draw out from peril. Paul, in Rom 11:26, applies the prophecy of Isa 59:20 to Christ, who is called a ὁ ῥυόμενος the deliverer, lxx.