Leviticus 22:11
And when the priest shall buy a soul, the purchase of his silver, he shall eat of it, and they born in his house; they shall eat from his bread.
Genesis 17:13
He shall be circumcised with circumcising, he being born in thy house, and bought with thy silver: and my covenant was in your flesh for an eternal covenant
Exodus 12:44
And every servant of a man bought with silver, and thou hast circumcised him, then he shall eat of it
Numbers 18:11-13
And this is to thee; the offerings of their gifts for all the liftings up of the sons of Israel: to thee I gave them, and to thy sons, and to thy daughters with thee, for a law forever: all clean in thy house shall eat it