The LORD said to Moses,
“Speak to the Israelites and say to them: ‘I am the LORD your God.
You must not do as they do in Egypt, where you used to live, and you must not do as they do in the land of Canaan, where I am bringing you. Do not follow their practices.
You must obey my laws and be careful to follow my decrees. I am the LORD your God.
Keep my decrees and laws, for the man who obeys them will live by them. I am the LORD.

You are all sons of God through faith in Christ Jesus, for all of you who were baptised into Christ have clothed yourselves with Christ.

There is neither Jew nor Greek, slave nor free, male nor female, for you are all one in Christ Jesus.
If you belong to Christ, then you are Abraham’s seed, and heirs according to the promise.
What I am saying is that as long as the heir is a child, he is no different from a slave, although he owns the whole estate. He is subject to guardians and trustees until the time set by his father. So also, when we were children, we were in slavery under the basic principles of the world.

But when the time had fully come, God sent his Son, born of a woman, born under law, to redeem those under law, that we might receive the full rights of sons. Because you are sons, God sent the Spirit of his Son into our hearts, the Spirit who calls out, “Abba, Father.”
So you are no longer a slave, but a son; and since you are a son, God has made you also an heir.