James Burton CoffmanFor it is written that Abraham had two sons, one by the handmaid, and one by the freewoman.Ishmael was the son of Hagar, Sarah's maid, whom she gave to Abraham, in order to claim a son (by such a device) for herself. Abraham had many sons by concubines, but they were his property, not Sarah's. Isaac was the actual son born to Sarah, born as a result of the promise of God long after the time when either Abraham or Sarah might have expected to have children. Sarah of course was free, the lawful... read more
Bridgeway Bible Commentary - Galatians 4:21-31
Example of Hagar and Sarah (4:21-31)Paul now attacks the Judaisers by using a form of argument that they themselves liked to use. He returns to the story of Abraham to show that law-keeping is slavery and it cannot be mixed with grace. (For the background to the illustration that follows read Genesis 15:1-6; Genesis 16:1-16; Genesis 17:15-22; Genesis 18:1-15; Genesis 21:1-21.) Abraham had two sons, Ishmael, who was born as a result of human arrangements that lacked any exercise of faith, and... read more