Thematic Bible: Proclaiming war

And Jehovah said unto Moses, Write this for a memorial in a book, and rehearse it in the ears of Joshua: that I will utterly blot out the remembrance of Amalek from under heaven. And Moses built an altar, and called the name of it Jehovah-nissi; And he said, Jehovah hath sworn: Jehovah will have war with Amalek from generation to generation.

And Jehovah spake unto Moses, saying, Avenge the children of Israel of the Midianites: afterward shalt thou be gathered unto thy people.