1 Corinthians 9:7
What soldier ever goes to war at his own expense? Who plants a vineyard and does not eat any of its grapes? Who shepherds a flock and does not drink any of the milk the flock produces?
2 Corinthians 10:4
for the weapons used in my warfare are not mere human ones, but through my God are mighty for demolishing fortresses.
1 Timothy 1:18
This is the instruction which I entrust to you, my son Timothy, which is in accordance with the prophetic utterances formerly made about you, that you may, aided by them, continue to fight the good fight,
1 Timothy 6:12
Keep up the good fight for the faith. Keep your hold on eternal life, to which God called you, when before many witnesses you made the good profession of faith.
2 Timothy 2:3-5
Take your share of hardships like a good soldier of Christ Jesus.