So Moses said to Joshua, “Choose men for us and go out, fight against Amalek [and his people]. Tomorrow I will stand on the top of the hill with the staff of God in my hand.”

‘Call to Me and I will answer you, and tell you [and even show you] great and mighty things, [things which have been confined and hidden], which you do not know and understand and cannot distinguish.’

Then

I shattered them so that they were not able to rise;
They fell [wounded] under my feet.

When the wicked came against me to eat up my flesh,
My adversaries and my enemies, they stumbled and fell.

When Jesus said, “I am He,” they drew back and fell to the ground.

For

The Lord of hosts is with us;
The God of Jacob is our stronghold [our refuge, our high tower]. Selah.

“Be broken [in pieces], O peoples, and be shattered!
Listen, all you [our enemies from the] far countries.
Prepare yourselves [for war], and be shattered;
Prepare yourselves [for war], and be shattered.

What then shall we say to all these things? If God is for us, who can be [successful] against us?

General references

Now when Moses held up his hand, Israel prevailed, and when he lowered his hand [due to fatigue], Amalek prevailed.