John Gill Commentary Ezekiel 20:48

"And all flesh shall see that I, Jehovah, have kindled it; it shall not be quenched." — Ezekiel 20:48 (ASV)

And all flesh shall see that I the Lord have kindled it
Not only the inhabitants of Jerusalem and Judea should see the hand of the Lord in their destruction; but even all the neighbouring nations, the case was so clear and plain, the matter so visible: it shall not be quenched ;
no stop put to it by all the art and power of man; so that it was a clear point that it was the Lord's doing.