Moses
Genesis 18:21BSB·traditional attribution

I will go down to see if their actions fully justify the outcry that has reached Me. If not, I will find out.”

John Calvin Reformed @genevareformer

21. I will go down now . Since this was a signal example of the wrath of God, which He intends to be celebrated through all ages, and to which he frequently refers in the Scripture; therefore Moses diligently records those things which are especially to be considered in divine judgments; just as, in this place, he commends the moderation of God, who does not...

Matthew Henry Presbyterian @wholebiblehenry

The messengers from heaven had now despatched one part of their business, which was an errand of grace to Abraham and Sarah, and which they delivered first; but now they have before them work of another nature. Sodom is to be destroyed, and they must do it, Gen 19:13. Note, As with the Lord there is mercy, so he is the God to whom vengeance belongs.

Commenting on Genesis 18:16-22

John Gill Reformed Baptist @doctorgill

I will go down now,.... The Son of God in an human form now with Abraham, who proposes to go from the place where he was, which perhaps was on higher ground, to the plain in which Sodom and Gomorrah stood; and whither it seems certain he did go down, after he had done talking with Abraham, see Gen 19:24, and see whether they have...