The Christian Church is free.
Wiersbe’s Commentary on Galatians 4:22 & 23- For it is written that Abraham had two sons, one by the slave woman and the other by the free woman. His son by the slave woman was born according to the flesh, but his son by the free woman was born as the result of a divine promise.
“Legalism does not mean the setting of spiritual standards; it means worshipping these standards and thinking we are spiritual because we obey them. It also means judging other believers on the basis of these standards.” (Wiersbe)