John Calvin Reformed @genevareformer

2. And all the brethren who are with me. — He appears to have usually written in the name of many persons, judging that, if those to whom he wrote should attach less weight to a solitary individual, they might listen to a greater number, and would not despise a whole congregation.

Matthew Henry Presbyterian @wholebiblehenry

In these verses we have the preface or introduction to the epistle, where observe, I. The person or persons from whom this epistle is sent - from Paul an apostle, etc., and all the brethren that were with him. 1. The epistle is sent from Paul; he only was the penman of it.

Commenting on Galatians 1:1-5

John Gill Reformed Baptist @doctorgill

And all the brethren which are with me,.... Meaning either the brethren of the church where he was when he wrote this epistle, who were children of the same Father, regenerated by the same grace, belonged to the same family and household of God, and were heirs together of the grace of life; or else his fellow ministers, who were assisting to him in his...