John Calvin's Commentary on the Bible - Galatians 4:17
Verse 17 17.They are jealous of you. He comes at length to the false apostles, and does more by silence to make them odious, than if he had given their names; for we usually abstain from naming those whose very names produce in us dislike and aversion. He mentions the immoderate ambition of those men, and warns the Galatians not to be led astray by their appearance of zeal. The comparison is borrowed from honorable love, as contrasted with those professions of regard which arise from unhallowed... read more
Adam Clarke's Commentary on the Bible - Galatians 4:29
But as then he - Ishmael, who was born after the flesh - whose birth had nothing supernatural in it, but was according to the ordinary course of nature, Persecuted him - Isaac, who was born after the Spirit - who had a supernatural birth, according to the promise, and through the efficacy, of the Holy Spirit, giving effect to that promise - Sarah shall have a son, Genesis 17:16-21 ; Genesis 21:1 , etc. Persecuted him; the persecution here referred to is that mentioned Genesis 21:9... read more