The Apostle Paul
2 Corinthians 9:9ESV·traditional attribution

As it is written, “He has distributed freely, he has given to the poor; his righteousness endures forever.”

John Calvin Reformed @genevareformer

9. As it is written, He hath dispersed He brings forward a proof from Psalms 112:9, where, along with other excellencies of the pious man, the Prophet mentions this, too, — that he will not be wanting in doing good, but as water flows forth incessantly from a perennial fountain, so the gushing forth of his liberality will be unceasing.

Matthew Henry Presbyterian @wholebiblehenry

Here we have, I. Proper directions to be observed about the right and acceptable manner of bestowing charity; and it is of great concernment that we not only do what is required, but do it as is commanded. Now, as to the manner in which the apostle would have the Corinthians give, observe, 1.

Commenting on 2 Corinthians 9:6-15

John Gill Reformed Baptist @doctorgill

As it is written,.... In Psa 112:9 where it is said of the good and righteous man, he hath dispersed "his riches", his substance, as the Chaldee paraphrase adds by way of explanation; not in a profuse extravagant manner, but with wisdom and prudence, and yet largely and liberally, according to his ability.