17 Their interest in you is not good; but their desire is that you may be shut out, so that you may go after them.
18 But it is good to have an interest in a good cause at all times, and not only when I am present with you.
19 My children, of whom I am again in birth-pains till Christ is formed in you,
20 Truly my desire is to be present with you now, using a changed voice; for I am troubled about you.
21 Say, you whose desire it is to be under the law, do you not give ear to the law?
22 Because it is in the Writings, that Abraham had two sons, one by the servant-woman, and one by the free woman.
23 Now the son by the servant-woman has his birth after the flesh; but the son by the free woman has his birth through the undertaking of God.
