19. My little children-- (1Ti 1:18; 2Ti 2:1; 1Jo 2:1). My relation to you is not merely that of one zealously courting you (Ga 4:17, 18), but that of a father to his children (1Co 4:15).
      I travail in birth--that is, like a mother in pain till the birth of her child.
      again--a second time. The former time was when I was "present with you" (Ga 4:18; compare Note, see on Ga 4:13).
      Christ be formed in you--that you may live nothing but Christ, and think nothing but Christ (Ga 2:20), and glory in nothing but Him, and His death, resurrection, and righteousness (Php 3:8-10; Col 1:27).

JFB.