Your prophets and your diviners - The evils from which the people had suffered so cruelly at home followed them in their exile.

Dreams which ye cause to be dreamed - As long as there was a market for dreams, so long there would be plenty of impostors to supply them.

Neither hearken to your dreams - Rather, dreamers; for it appears there was a class of such persons, who not only had acquired a facility of dreaming themselves, but who undertook to interpret the dreams of others.

For thus saith the Lord of hosts, the God of Israel,.... See Gill on Jeremiah 29:4;

let not your prophets and your diviners, that be in the midst of you, deceive you; their false prophets, as the Targum; and there were many such in the captivity; see Ezekiel 13:2; and such who pretended to divine and foretell future things, and so impose upon the people, who were too apt to believe them; these insinuated, that in a little time they should have their liberty, and return to their own land again, contrary to the prophecies that came from the Lord himself:

neither hearken to your dreams which ye cause to be dreamed; for that of a speedy return to their own land was no other than a dream, which they both dreamed themselves; their thoughts running on it in the daytime, they dreamed of it at night; and fancied it was from the Lord; a divine dream; and so built much upon it; and also which they encouraged the false prophets and diviners to dream, and tell their dreams, by their listening to them, and being pleased with them, giving credit to them as if they came from God.

For thus saith the LORD of hosts, the God of Israel; Let not your prophets and your diviners, that be in the midst of you, deceive you, neither hearken to your dreams which ye cause to be dreamed.

8. your dreams which ye caused to be dreamed-The Latin adage says, "The people wish to be deceived, so let them be deceived." Not mere credulity misleads men, but their own perverse "love of darkness rather than light." It was not priests who originated priestcraft, but the people's own morbid appetite to be deceived; for example, Aaron and the golden calf (Ex 32:1-4). So the Jews caused or made the prophets to tell them encouraging dreams (Jer 23:25, 26; Ec 5:7; Zec 10:2; Joh 3:19-21).

29:8-19 Let men beware how they call those prophets whom they choose after their own fancies, and how they consider their fancies and dreams to be revelations from God. False prophets flatter people in their sins, because they love to be flattered; and they speak smoothly to their prophets, that their prophets may speak smoothly to them. God promises that they should return after seventy years were accomplished. By this it appears, that the seventy years of the captivity are not to be reckoned from the last captivity, but the first. It will be the bringing to pass of God's good word to them. This shall form God's purposes. We often do not know our own minds, but the Lord is never at an uncertainty. We are sometimes ready to fear that God's designs are all against us; but as to his own people, even that which seems evil, is for good. He will give them, not the expectations of their fears, or the expectations of their fancies, but the expectations of their faith; the end he has promised, which will be the best for them. When the Lord pours out an especial spirit of prayer, it is a good sign that he is coming toward us in mercy. Promises are given to quicken and encourage prayer. He never said, Seek ye me in vain. Those who remained at Jerusalem would be utterly destroyed, notwithstanding what the false prophets said to the contrary. The reason has often been given, and it justifies the eternal ruin of impenitent sinners; Because they have not hearkened to my words; I called, but they refused.