2 Timothy 2:4-7, 11-13

No soldier on service entangleth himself in the affairs of this life; that he may please him who enrolled him as a soldier. And if also a man contend in the games, he is not crowned, except he have contended lawfully. The husbandman that laboreth must be the first to partake of the fruits. Consider what I say; for the Lord shall give thee understanding in all things.

Faithful is the saying: For if we died with him, we shall also live with him: if we endure, we shall also reign with him: if we shall deny him, he also will deny us: if we are faithless, he abideth faithful; for he cannot deny himself.