Galatians 4:21

17They zealously seek you in no good way. No, they desire to alienate you, that you may seek them.

18But it is always good to be zealous in a good cause, and not only when I am present with you.

19My little children, of whom I am again in travail until Christ is formed in you—

20but I could wish to be present with you now, and to change my tone, for I am perplexed about you.

21Tell me, you that desire to be under the law, don’t you listen to the law?

22For it is written that Abraham had two sons, one by the servant, and one by the free woman.

23However, the son by the servant was born according to the flesh, but the son by the free woman was born through promise.

24These things contain an allegory, for these are two covenants. One is from Mount Sinai, bearing children to bondage, which is Hagar.

25For this Hagar is Mount Sinai in Arabia, and answers to the Jerusalem that exists now, for she is in bondage with her children.