John Gill Commentary Ezekiel 14:23

"And they shall comfort you, when ye see their way and their doings; and ye shall know that I have not done without cause all that I have done in it, saith the Lord Jehovah." — Ezekiel 14:23 (ASV)

And they shall comfort you, when you see their ways and their
doings
Not that their sinful ways and doings would be comfortable to them, but either their acknowledgments of them, and repentance for them; or, seeing their dissolute manner of life, it would be a means of composing their minds, and making them easy under the providence; being now satisfied that God was just in bringing upon them all the evils he had, and that they were punished according to their deserts, and less than their sins deserved.

and you shall know that I have not done without cause all that I have
done in it, saith the Lord God ;
that there was just reason for it; that he was sufficiently provoked to do it; and that it was necessary it should be done, for his own honour, and the good of others.