Exodus 17:15

Timna was a concubine of Esau’s son Eliphaz, and she bore Amalek to Eliphaz. These are the sons of Esau’s wife Adah.

And Moses wrote down all the words of Yahweh. Then he arose early in the morning and built an altar at the foot of the mountain with twelve pillars for the twelve tribes of Israel.

“Remember what Amalek did to you along the way when you came out from Egypt,

“Thus says Yahweh of hosts, ‘I will punish Amalek for what he did to Israel, how he set himself against him on the way while he was coming up from Egypt.