The Apostle Paul
Romans 12:6ESV·traditional attribution

Having gifts that differ according to the grace given to us, let us use them: if prophecy, in proportion to our faith;

John Calvin Reformed @genevareformer

6. Having gifts, etc. Paul speaks not now simply of cherishing among ourselves brotherly love, but commends humility, which is the best moderator of our whole life. Every one desires to have so much himself, so as not to need any help from others; but the bond of mutual communication is this, that no one has sufficient for himself, but is constrained to borrow from others.

Matthew Henry Presbyterian @wholebiblehenry

We may observe here, according to the scheme mentioned in the contents, the apostle's exhortations, I. Concerning our duty to God, We see what is godliness. 1. It is to surrender ourselves to God, and so to lay a good foundation. We must first give our own selves unto the Lord, Co2 8:5. This is here pressed as the spring of all duty and obedience, Rom 12:1, Rom 12:2.

Commenting on Romans 12:1-21

John Gill Reformed Baptist @doctorgill

Having then gifts, differing,.... As in a natural body, the various members of it have not the same office, and do not perform the same actions, thus they have not the same, but different faculties; one has one faculty, another another; the eye has the faculty of seeing, the ear of hearing, &c.