John Calvin Commentary Ezekiel 14:19-20

"Or if I send a pestilence into that land, and pour out my wrath upon it in blood, to cut off from it man and beast; though Noah, Daniel, and Job, were in it, as I live, saith the Lord Jehovah, they should deliver neither son nor daughter; they should but deliver their own souls by their righteousness." — Ezekiel 14:19-20 (ASV)

He now affirms of the fourth kind of punishment, what he has hitherto pronounced of the rest. He says, then, If I shall have sent a pestilence, and have devoted a land to devastation, that Job, Daniel, and Noah, should be safe if they dwelt there: but that their righteousness should not profit even their sons and their daughters.

Nay, he seems to speak with greater restriction, since he has substituted the singular number for the plural: for he had just said, they shall not free either sons or daughters. He now says, not even a son or a daughter, that is, they shall not prevail with me by their intercession so much as to save from death even a single son or daughter. We must also remember what I have said, that God does not always act in the way related here: for he has manifold and various methods of carrying out his judgments. Hence it would not be just to impose a law not to liberate any one, and according to his own will either to hear or reject their prayers. But here he only means, that when he has determined to destroy a land, there is no hope of pardon, since even the most holy will not persuade him to desist from his wrath and vengeance.