Albert Barnes Commentary Ezekiel 13:3

"Thus saith the Lord Jehovah, Woe unto the foolish prophets, that follow their own spirit, and have seen nothing!" — Ezekiel 13:3 (ASV)

That follow ... nothing—the marginal reading is better. A true prophet (like Ezekiel) spoke “the word of the Lord,” and declared what he had seen “in the visions of God.” These pretenders are stigmatized in scorn “prophets out of their own hearts,” “seers of what they have not seen.”