But now that faith has come, we are no longer under a custodian.
References for Galatians 3:25
You are all God's children through faith in Christ Jesus.
All of you who were baptized into Christ have clothed yourselves with Christ.
There is neither Jew nor Greek; there is neither slave nor free; nor is there male and female, for you are all one in Christ Jesus.
Now if you belong to Christ, then indeed you are Abraham's descendants, heirs according to the promise.