The Apostle Paul
Colossians 1:19BSB·traditional attribution

For God was pleased to have all His fullness dwell in Him,

John Calvin Reformed @genevareformer

19. Because it hath pleased the Father that in him. With the view of confirming what he has declared respecting Christ, he now adds, that it was so arranged in the providence of God. And, unquestionably, in order that we may with reverence adore this mystery, it is necessary that we should be led back to that fountain.

Matthew Henry Presbyterian @wholebiblehenry

Here is a summary of the doctrine of the gospel concerning the great work of our redemption by Christ. It comes in here not as the matter of a sermon, but as the matter of a thanksgiving; for our salvation by Christ furnishes us with abundant matter of thanksgiving in every view of it: Giving thanks unto the Father, Col 1:12.

Commenting on Colossians 1:12-29

John Gill Reformed Baptist @doctorgill

For it pleased the Father,.... The phrase, "the Father", is not in the original text, but is rightly supplied; since he is expressly mentioned in the context, as he who makes the saints meet to be partakers of the heavenly glory; who deliver, them from the power and dominion of sin, and translates them into the kingdom of his dear Son; and who, by Christ...