2 Timothy 2:12-15

12if we endure, we shall also reign together; if we deny, he also will deny us;

13if we are unfaithful, he abides faithful, for he cannot deny himself.

14Of these things put in remembrance, testifying earnestly before the Lord not to have disputes of words, profitable for nothing, to the subversion of the hearers.

15Strive diligently to present thyself approved to 1God, a workman that has not to be ashamed, cutting in a straight line the word of truth.