John Gill Commentary Ezekiel 3:4

"And he said unto me, Son of man, go, get thee unto the house of Israel, and speak with my words unto them." — Ezekiel 3:4 (ASV)

And he said to me, son of man, go; After he had eaten the roll; for then was he qualified to prophesy:

get you to the house of Israel; to whom he was to prophesy:

and speak with my words to them: not with his own words; nor with the words of men, the enticing words of man's wisdom; but with the words of Christ; with the taught words of the Holy Ghost; with what is written in the roll; the words of this prophecy are meant.

So the Targum, "and you shall prophesy the words of my prophecy to them;"

In like manner John after he had eaten the little book, is told that he must prophesy before many people, nations, tongues, and kings, (Revelation 10:9–11); though Ezekiel was only sent to one nation, as follows: