Galatians 4:16-23

16So then am I become your enemy, by telling you the truth? 17They zealously seek you in no good way; nay, they desire to shut you out, that ye may seek them. 18But it is good to be zealously sought in a good matter at all times, and not only when I am present with you. 19My little children, of whom I am again in travail until Christ be 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, ye that desire to be under the law, do ye not hear the law? 22For it is written, that Abraham had two sons, one by the handmaid, and one by the freewoman. 23Howbeit the son by the handmaid is born after the flesh; but the son by the freewoman is born through promise.