Galatians 3:28

This verse continues the proof that all Christians are, in the fullest sense, “sons of God.” Galatians 3:27 showed why this was so; the present verse shows that there are no exceptions, no inequalities. All Christians alike, no matter what their race, status, or sex, stand on the same footing of sonship before God. There is a unity or solidarity in the Christian body. What is true of one is true of all.

Greek. — The spread of the Greek race through the conquests of Alexander, their ubiquitous presence, and the use of the Greek language as a universal medium of communication, led to the name “Greek” being applied to all who were not Jews. “Jew and Greek” is intended to be an exhaustive division of the human race, just as “bond or free,” “male and female.”

This verse marks the immense stride made by Christianity in sweeping away the artificial distinctions which had been the bane of the ancient world, and prevented any true feeling of brotherhood springing up in it. Christianity, at one stroke, established the brotherhood and abolished the distinctions.

One. — The word “one” is masculine — “one man,” “a single person” — as explained in the paraphrase above.