Paul said to his man in 2 Timothy 2:1-7 (WEB),
1) You therefore, my child, be strengthened in the grace that is in Christ Jesus. 2) The things which you have heard from me among many witnesses, commit the same things to faithful men, who will be able to teach others also. 3) You therefore must endure hardship as a good soldier of Christ Jesus. 4) No soldier on duty entangles himself in the affairs of life, that he may please him who enrolled him as a soldier. 5) Also, if anyone competes in athletics, he isn't crowned unless he has competed by the rules. 6) The farmer who labors must be the first to get a share of the crops. 7) Consider what I say, and may the Lord give you understanding in all things.
Do we Christians live our lives for Christ with the same duty of a soldier? With the same sportsmanship of an athlete? With the same hard labors of a farmer? Enlist in this boot camp program to challenge your faith and grow.