2 Timothy 2:12-15 New International Version (NIV)

12. if we endure, we will also reign with him. If we disown him, he will also disown us;

13. if we are faithless, he remains faithful, for he cannot disown himself.

14. Keep reminding God’s people of these things. Warn them before God against quarreling about words; it is of no value, and only ruins those who listen.

15. Do your best to present yourself to God as one approved, a worker who does not need to be ashamed and who correctly handles the word of truth.

2 Timothy 2