No man that warreth entangleth himself with the affairs of this life; that he may please him who hath chosen him to be a soldier.
2 Timothy 2:13
If we believe not, yet he abideth faithful: he cannot deny himself.
2 Timothy 2:21
If a man therefore purge himself from these, he shall be a vessel unto honour, sanctified, and meet for the master's use, and prepared unto every good work.