Albert Barnes Commentary Jeremiah 23:26

"How long shall this be in the heart of the prophets that prophesy lies, even the prophets of the deceit of their own heart?" — Jeremiah 23:26 (ASV)

Some translate, “How long? Is it in the heart of the prophets that prophesy lies, and prophesy the deceit of their heart—do they purpose to make My people forget My name by their dreams which they tell one to another?”