Deuteronomy 25:17 KJV
Remember what Amalek did unto thee by the way, when ye were come forth out of Egypt;
Deuteronomy 25:17, King James Version
In context
16 For all that do such things, and all that do unrighteously, are an abomination unto the Lord thy God.
17 Remember what Amalek did unto thee by the way, when ye were come forth out of Egypt;
18 How he met thee by the way, and smote the hindmost of thee, even all that were feeble behind thee, when thou wast faint and weary; and he feared not God.