The Apostle Paul
Galatians 4:29BSB·traditional attribution

At that time, however, the son born by the flesh persecuted the son born by the Spirit. It is the same now.

John Calvin Reformed @genevareformer

29. As then, he that was born after the flesh. He denounces the cruelty of the false apostles, who wantonly insulted pious persons that placed all their confidence in Christ. There was abundant need that the uneasiness of the oppressed should be soothed by consolation, and that the cruelty of their oppressors should be severely checked.

Matthew Henry Presbyterian @wholebiblehenry

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

John Gill Reformed Baptist @doctorgill

Nevertheless, what saith the Scripture?.... This is a Talmudic form of citing Scriptures, and answers to , "what says the Scriptures (e)?" the passage referred to is Gen 21:10 and which are the words of Sarah to Abraham; but inasmuch as she spake them under divine inspiration, and they were approved of and confirmed by God, as appears from Gen 21:12 they are ascribed to...