The Apostle Paul
Galatians 4:11BSB·traditional attribution

I fear for you, that my efforts for you may have been in vain.

John Calvin Reformed @genevareformer

11. Lest I have bestowed upon you labor in vain. The expression is harsh, and must have filled the Galatians with alarm; for what hope was left to them, if Paul’s labor had been in vain? Some have expressed astonishment that Paul should be so powerfully affected by the observance of days, as almost to designate it a subversion of the whole gospel.

Matthew Henry Presbyterian @wholebiblehenry

In these verses the apostle puts them in mind of what they were before their conversion to the faith of Christ, and what a blessed change their conversion had made upon them; and thence endeavours to convince them of their great weakness in hearkening to those who would bring them under the bondage of the law of Moses. I.

Commenting on Galatians 4:8-11

John Gill Reformed Baptist @doctorgill

Brethren, I beseech you, be as I am,.... Though they had gone so far backwards, yet still hoping well of them that they would he reclaimed, he styles them "brethren": not in a carnal but spiritual relation, as being born of God, and belonging to his family; and out of his sincere and hearty love for them as his brethren in Christ, he exhorts them...