Charles Ellicott Commentary Jeremiah 23:25

"I have heard what the prophets have said, that prophesy lies in my name, saying, I have dreamed, I have dreamed." — Jeremiah 23:25 (ASV)

I have dreamed ... —The words point to the form of the claim commonly made by the false prophets.

Dreams took their place among the recognized channels of divine revelation (Genesis 40:8; Genesis 41:16; Joel 2:28; Daniel 7:1). However, their frequent misuse by the false prophets brought them into discredit. Consequently, the teaching of Deuteronomy 13:1-5 subjected the “dreamer of dreams,” no less than the prophet, to the test of whether what he taught was in accordance with the law of Jehovah.

The iteration of “I have dreamed” represents the affected solemnity with which the false prophets proclaimed their visions. Of the disparagement of dreams resulting from this abuse, we have a striking example in Ecclesiastes 5:3, and later still in Sirach 34:1-7.