Verses with the word fighteth in the Old Testament (3 verses):

Exodus 14:25
And took off their chariot wheels, that they drave them heavily: so that the Egyptians said, Let us flee from the face of Israel; for the LORD fighteth for them against the Egyptians.

Joshua 23:10
One man of you shall chase a thousand: for the LORD your God, he it is that fighteth for you, as he hath promised you.

1 Samuel 25:28
I pray thee, forgive the trespass of thine handmaid: for the LORD will certainly make my lord a sure house; because my lord fighteth the battles of the LORD, and evil hath not been found in thee all thy days.