“born in my house.” This phrase refers to slaves, a point that is made especially clear when it is combined with “bought with his money.” Slaves could be bought, but also, the child of a slave was a slave who was “born in the house.” “Born in my house” does not mean that the slave was literally born in the exact house that the owner lived in, but rather that the slave’s mother was part of the extended household of the owner.

[For more on “born in his house,” see commentary on Genesis 17:12.]