2 Timothy 2:3-5

King James Version

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

⁴ 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.

⁵ And if a man also strive for masteries, yet is he not crowned, except he strive lawfully.