2 Chronicles 20:15

20:15 He said: “Pay attention, all you people of Judah, residents of Jerusalem, and King Jehoshaphat! This is what the Lord says to you: ‘Don’t be afraid and don’t panic because of this huge army! For the battle is not yours, but God’s.

Deuteronomy 20:1

Laws Concerning War with Distant Enemies

20:1 When you go to war against your enemies and see chariotry and troops who outnumber you, do not be afraid of them, for the Lord your God, who brought you up out of the land of Egypt, is with you.

Deuteronomy 20:4

20:4 for the Lord your God goes with you to fight on your behalf against your enemies to give you victory.”

Joshua 10:42

10:42 Joshua captured in one campaign all these kings and their lands, for the Lord God of Israel fought for Israel.