King James Version (KJV) Authorized Version 1611
Read Full Chapter (Deuteronomy 25)

Deuteronomy 25:22 KJV

"Therefore it shall be, when the LORD thy God hath given thee rest from all thine enemies round about, in the land which the LORD thy God giveth thee for an inheritance to possess it, that thou shalt blot out the remembrance of Amalek from under heaven; thou shalt not forget it."
Deuteronomy Chapter 25, Verse 22

Deuteronomy 25:22 in Context (Verses 19–19 KJV)

19
Therefore it shall be, when the LORD thy God hath given thee rest from all thine enemies round about, in the land which the LORD thy God giveth thee for an inheritance to possess it, that thou shalt blot out the remembrance of Amalek from under heaven; thou shalt not forget it.