He is the fortress in the battle.
The Lord is my rock, my fortress and my deliverer; my God is my rock, in whom I take refuge, my shield and the horn of my salvation, my stronghold. I called to the Lord, who is worthy of praise, and I have been saved from my enemies.
The Lord defends all who come to Him. If you cry out to Him, if you look to Him for strength, He will protect you. He will sustain you in ways that are beyond your strength.