Deuteronomy 24:22 KJV
And thou shalt remember that thou wast a bondman in the land of Egypt: therefore I command thee to do this thing.
Deuteronomy 24:22, King James Version
In context
21 When thou gatherest the grapes of thy vineyard, thou shalt not glean it afterward: it shall be for the stranger, for the fatherless, and for the widow.
22 And thou shalt remember that thou wast a bondman in the land of Egypt: therefore I command thee to do this thing.