Deuteronomy 25:17-19

¹⁷“Never forget what the Amalekites did to you as you came from Egypt. ¹⁸They attacked you when you were exhausted and weary, and they struck down those who were straggling behind. They had no fear of God. ¹⁹Therefore, when the Lord your God has given you rest from all your enemies in the land he is giving you as a special possession, you must destroy the Amalekites and erase their memory from under heaven. Never forget this!