This charge I commit unto thee, son Timothy: the term son, here applied to Timothy, whom he elsewhere calls his brother, is not a term of natural relation, but of spiritual relation, and of affectionate friendship and endearment. By the charge mentioned he probably means that before mentioned, 1 Timothy 1:3,4, to charge the false teachers to teach no other doctrine, nor give heed to fables, & c. According to the prophecies which went before on thee: these prophecies were either the judgments of good men before concerning him, or (which possibly is more probable) some Divine revelations Paul, or some believers, had received concerning this young man. That thou by them mightest war a good warfare; that thou, having heard of them, or remembering them, (though thou meetest with opposition as a minister and as a Christian, yet) mightest not be discouraged, but preach and hold the faith, against all opposers. So the apostle expoundeth himself.
Related Commentaries of 1 Timothy 1:18
1 Timothy 1:18
18 This charge I commit unto thee, son Timothy, according to the prophecies which went before on thee, that thou by them mightest war a good warfare;