Galatians 3:28

3:28 There is neither Jew nor Greek, there is neither slave nor free, there is neither male nor female – for all of you are one in Christ Jesus.

Galatians 4:1

4:1 Now I mean that the heir, as long as he is a minor, is no different from a slave, though he is the owner of everything.

Galatians 4:7

4:7 So you are no longer a slave but a son, and if you are a son, then you are also an heir through God.

Galatians 4:22-23

4:22 For it is written that Abraham had two sons, one by the slave woman and the other by the free woman. 4:23 But one, the son by the slave woman, was born by natural descent, while the other, the son by the free woman, was born through the promise.