It is written that Abraham had two sons, one by a slave woman and the other by a free woman. One, the child of the slave, was born according to the flesh; the other, the child of the free woman, was born through the promise. Now this is an allegory: these women are two covenants. One woman, in fact, is Hagar, from Mount Sinai, bearing children for slavery.
But the other woman corresponds to the Jerusalem above; she is free, and she is our mother. For it is written,
“Rejoice, you childless one, you who bear no children,
burst into song and shout, you who endure no birthpangs;
for the children of the desolate woman are more numerous
than the children of the one who is married.”
So then, friends, we are children, not of the slave but of the free woman. For freedom Christ has set us free. Stand firm, therefore, and do not submit again to a yoke of slavery.
Scripture passage from the New Revised Standard Version Bible: Catholic Edition, copyright 1989, 1993, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.