Deuteronomy 26:17 (DRB)

16 This day the Lord thy God hath commanded thee to do these commandments and judgments: and to keep and fulfill them with all thy heart, and with all thy soul.

Deuteronomy 25:17-19 (DRB)

17 Remember what Amalec did to thee in the way when thou camest out of Egypt:

18 How he met thee: and slew the hindmost of the army, who sat down, being weary, when thou wast spent with hunger and labour, and he feared not God.

19 Therefore when the Lord thy God shall give thee rest, and shall have subdued all the nations round about in the land which he hath promised thee: thou shalt blot out his name from under heaven. See thou forget it not.