21 Tell me, those of you who want to be under the law, don’t you hear the law? 22 For it is written that Abraham had two sons, one by a slave and the other by a free woman. 23 But the one by the slave was born according to the impulse of the flesh, while the one by the free woman was born as the result of a promise. 24 These things are illustrations, for the women represent the two covenants. One is from Mount Sinai and bears children into slavery—this is Hagar. 25 Now Hagar is Mount Sinai in Arabia and corresponds to the present Jerusalem, for she is in slavery with her children. 26 But the Jerusalem above is free, and she is our mother.
God does not change His mind, but He does create two separate covenants with mankind – the first covenant, often referred to as ‘old’ provides the Law and for a long time, mankind lives under this Law. The second covenant, often referred to as ‘new’ provides the Grace and from that point on, mankind lives under this Grace. Once Grace arrives, the Law is no longer needed. In fact, the Law is nailed to a tree and is essentially fulfilled in the Life and Body of Jesus Christ, once and for all!
Putting oneself back under the Law once under Grace is like going back into Slavery once Freedom is obtained. Who does that?
Paul wearies over the church at Galatia, even saying he remains in labor pains until Christ is formed in them. He wonders how it is that they’ve lost their joy, covering themselves with once-removed burdens. He wants to change his tone, but he is bewildered and hurt that they’ve returned to Slavery unnecessarily.
Don’t make this mistake. Our mother is not Hagar but Sarah; and she is Freedom.