2 Timothy 2:3 Thou therefore endure hardness, as a good soldier of Jesus Christ.

Ecclesiastes 9:10 Whatsoever thy hand findeth to do, do it with thy might; for there is no work, nor device, nor knowledge, nor wisdom, in the grave, whither thou goest.

Jeremiah 48:10 Cursed be he that doeth the work of the LORD deceitfully, and cursed be he that keepeth back his sword from blood.