Leviticus 19:3-4, 10, 34

Ye shall fear every man his mother, and his father, and keep my sabbaths: I am the LORD your God. Turn ye not unto idols, nor make to yourselves molten gods: I am the LORD your God.

And thou shalt not glean thy vineyard, neither shalt thou gather every grape of thy vineyard; thou shalt leave them for the poor and stranger: I am the LORD your God.

But the stranger that dwelleth with you shall be unto you as one born among you, and thou shalt love him as thyself; for ye were strangers in the land of Egypt: I am the LORD your God.