1 Timothy 1:18-19

1:18 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; 1:19 Holding faith, and a good conscience; which some having put away concerning faith have made shipwreck:

1 Timothy 6:12

6:12 Fight the good fight of faith, lay hold on eternal life, whereunto thou art also called, and hast professed a good profession before many witnesses.