"I AM" is enough.
I am like an Israelite, standing before the opened Red Sea. What's a person to do when you ask for His help and He cracks wet ground for you to walk across?
I am like Joshua about to take the city of Jericho. The non-rhetorical question "Have I not commanded you?" ringing in my ears.
Be strong and courageous.
I am like the psalmist, searching the horizon for the coming help.
Know that the Maker watches over.
Wait for the Lord; be strong and take heart and wait for the Lord. Psalm 27:14
Exodus 3:14; Exodus 14:21-22; Joshua 1:9; Psalm 121