Exodus 17:14-16 New American Bible, Revised Edition (NABRE)

14. Then the Lord said to Moses: Write this down in a book as something to be remembered, and recite it to Joshua: I will completely blot out the memory of Amalek from under the heavens.

15. Moses built an altar there, which he named Yahweh-nissi;

16. for he said, “Take up the banner of the Lord! The Lord has a war against Amalek through the ages.”

Exodus 17