Exodus 3:9; Exodus 22:21; Exodus 23:9

9 Now therefore, behold, the cry of the children of Israel is come unto me: and I have also seen the oppression wherewith the Egyptians oppress them.

21 Thou shalt neither vex a stranger, nor oppress him: for ye were strangers in the land of Egypt.

9 Also thou shalt not oppress a stranger: for ye know the heart of a stranger, seeing ye were strangers in the land of Egypt.