The Apostle Paul
Romans 8:14BSB·traditional attribution

For all who are led by the Spirit of God are sons of God.

John Calvin Reformed

14. For whosoever are led by the Spirit of God, etc. This is a confirmation of what has immediately preceded; for he teaches us, that those only are deemed the sons of God who are ruled by his Spirit; for by this mark God acknowledges them as his own people.

Matthew Henry Presbyterian

In these verses the apostle represents two more excellent benefits, which belong to true believers. I. Life. The happiness is not barely a negative happiness, not to be condemned; but it is positive, it is an advancement to a life that will be the unspeakable happiness of the man (Rom 8:10, Rom 8:11): If Christ be in you. Observe, If the Spirit be in us, Christ is in us.

Commenting on Romans 8:10-16

John Gill Reformed Baptist

For as many as are led by the Spirit of God,.... Not by the spirit of the world, or of the devil, or by their own spirits: the act of leading ascribed to the Spirit is either in allusion to the leading of blind persons, or such who are in the dark; or rather to the leading of children and teaching them to go; which...