1 Tim 6:12 Fight the good fight of faith.
2 Tim 4:7 I have fought the good fight, I have finished the race...
1 Tim 1:18-20 Timothy, my son, here are my instructions for you, based on the prophetic words spoken about you earlier. May they help you fight well in the Lord’s battles. Cling to your faith in Christ, and keep your conscience clear. For some people have deliberately violated their consciences; as a result, their faith has been shipwrecked. Hymenaeus and Alexander are two examples. I threw them out and handed them over to Satan so they might learn not to blaspheme God.