Exodus 17:13-15

Darby Translation

¹³ And Joshua broke the power of Amalek and his people with the edge of the sword.

¹⁴ And Jehovah said to Moses, Write this [for] a memorial in the book, and rehearse [it] in the ears of Joshua, that I will utterly blot out the remembrance of Amalek from under the heavens.

¹⁵ And Moses built an altar, and called the name of it Jehovah-nissi.