The Apostle Paul
2 Corinthians 5:20ESV·traditional attribution

Therefore, we are ambassadors for Christ, God making his appeal through us. We implore you on behalf of Christ, be reconciled to God.

John Calvin Reformed @genevareformer

20. As if God did beseech you This is of no small importance for giving authority to the embassy: nay more, it is absolutely necessary, for who would rest upon the testimony of men, in reference to his eternal salvation?

Matthew Henry Presbyterian @wholebiblehenry

In these verses the apostle mentions two things that are necessary in order to our living to Christ, both of which are the consequences of Christ's dying for us; namely, regeneration and reconciliation. I. Regeneration, which consists of two things; namely, 1. Weanedness from the world: "Henceforth we know no man after the flesh, Co2 5:16.

Commenting on 2 Corinthians 5:16-21

John Gill Reformed Baptist @doctorgill

For he hath made him to be sin for us,.... Christ was made of a woman, took flesh of a sinful woman; though the flesh he took of her was not sinful, being sanctified by the Spirit of God, the former of Christ's human nature: however, he appeared "in the likeness of sinful flesh"; being attended with infirmities, the effects of sin, though sinless; and...