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

These things may be treated as an allegory, for these women represent two covenants. One is from Mount Sinai bearing children for slavery; this is Hagar.

Now an intermediary is not for one party alone, but God is one.

For the flesh has desires that are opposed to the Spirit, and the Spirit has desires that are opposed to the flesh, for these are in opposition to each other, so that you cannot do what you want.