Joseph Benson's Commentary of the Old and New Testaments - Galatians 4:4-7
Galatians 4:4-7. But when the fulness of time Appointed by the Father, (Galatians 4:2,) and marked out by the predictions of the prophets for the accomplishment of this great event; was come And we were arrived at the age proper for our entering on our adult state, and being put in possession of the promises, by the introduction of the gospel dispensation; God sent forth From heaven into our world; his Son Miraculously made, or rather, born, as the word γενομενον may, with equal... read more
Albert Barnes' Notes on the Whole Bible - Galatians 4:6
And because ye are sons - As a consequence of your being adopted into the family of God, and being regarded as his sons. It follows as a part of his purpose of adoption that his children shall have the spirit of the Lord Jesus.The Spirit of his Son - The spirit of the Lord Jesus; the spirit which animated him, or which he evinced. The idea is, that as the Lord Jesus was enabled to approach God with the language of endearment and love, so they would be. He, being the true and exalted Son of God,... read more