Isaiah
Isaiah 28:21ESV·traditional attribution

For the LORD will rise up as on Mount Perazim; as in the Valley of Gibeon he will be roused; to do his deed—strange is his deed! and to work his work—alien is his work!

John Calvin Reformed @genevareformer

21. For as in Mount Perazim. Since he speaks here of the reprobate, the Prophet holds out nothing but terrors and cruel punishment; for while the Lord deals kindly and gently with his children, he shews that he will be an object of terror to the reprobate.

Matthew Henry Presbyterian @wholebiblehenry

The prophet, having reproved those that made a jest of the word of God, here goes on to reprove those that made a jest of the judgments of God, and set them at defiance; for he is a jealous God, and will not suffer either his ordinances or his providences to be brought into contempt.

Commenting on Isaiah 28:14-22

John Gill Reformed Baptist @doctorgill

Now therefore be ye not mockers,.... At the words of the prophets, and the judgments denounced by them, which is very common, when they are deferred, and not immediately executed: this was the case before the destruction of Jerusalem by the Chaldeans, and one cause of it, Ch2 36:16 and also by the Romans; see Act 13:41, lest your bands be made strong; punishment become...