Leviticus 22:11
but if a priest buys a person with his own money, that person may eat the holy offerings, and those born in the priest's own house may eat his food.
Genesis 17:13
They must indeed be circumcised, whether born in your house or bought with money. The sign of my covenant will be visible in your flesh as a permanent reminder.
Exodus 12:44
But everyone's servant who is bought for money, after you have circumcised him, may eat it.
Numbers 18:11-13
"And this is yours: the raised offering of their gift, along with all the wave offerings of the Israelites. I have given them to you and to your sons and daughters with you as a perpetual ordinance. Everyone who is ceremonially clean in your household may eat of it.