The Apostle Paul
Colossians 3:15WEB·traditional attribution

And let the peace of God rule in your hearts, to which also you were called in one body; and be thankful.

Jamieson-Fausset-Brown Reformed

peace of God--The oldest manuscripts and versions read, "The peace of CHRIST" (compare Phi 4:7). "The peace of GOD." Therefore Christ is God. Peace was His legacy to His disciples before He left them (Joh 14:27), "MY peace I give unto you." Peace is peculiarly His to give. Peace follows love (Col 3:14; Eph 4:2-3). rule--literally, "sit as umpire"; the same Greek verb simple, as appears compounded (Col 2:18).

John Gill Reformed Baptist

And let the peace of God rule in your hearts,.... By "the peace of God" is meant, either the peace believers have with God, which is his gift, and passes all understanding, and flows from a comfortable apprehension of interest in the blood, righteousness, and atonement of Christ; or rather that peace which does, or should subsist among the saints themselves, which God is the...

John Calvin Reformed

15. And the peace of God. He gives the name of the peace of God to that which God has established among us, as will appear from what follows. He would have it reign in our hearts. “Rule in your hearts, (βραβεύετο.) Let the peace of Christ judge, decide, and govern in your hearts, as the brabeus, or judge, does in the Olympic contests...