17 They court you eagerly, but for no good purpose; they want to exclude you, so that you would seek them eagerly.
18 However, it is good to be sought eagerly for a good purpose at all times, and not only when I am present with you.
19 My children – I am again undergoing birth pains until Christ is formed in you!
20 I wish I could be with you now and change my tone of voice, because I am perplexed about you.
21 Tell me, you who want to be under the law, do you not understand the law?
22 For it is written that Abraham had two sons, one by the slave woman and the other by the free woman.
23 But one, the son by the slave woman, was born by natural descent, while the other, the son by the free woman, was born through the promise.