For it is written that Abraham had two sons, one by a slave woman and one by a free woman.
22. For it is written. No man who has a choice given him will be so mad as to despise freedom, and prefer slavery. But here the apostle teaches us, that they who are under the law are slaves. Unhappy men! who willingly choose this condition, when God desires to make them free.
In these verses the apostle illustrates the difference between believers who rested in Christ only and those judaizers who trusted in the law, by a comparison taken from the story of Isaac and Ishmael. This he introduces in such a manner as was proper to strike and impress their minds, and to convince them of their great weakness in departing from the truth, and suffering...
Commenting on Galatians 4:21-31
But he who was of the bondwoman,.... Ishmael, who was begotten and born of Hagar, was born after the flesh; after the common order and course of nature, through the copulation of two persons, the one able to procreate, and the other fit for the conception of children; and was typical of the Jews, the natural descendants of Abraham, who, as such, and upon that...