2 Timothy 2:4 in the King James Version
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.
Context
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.