Albert Barnes Commentary Jeremiah 20:6

"And thou, Pashhur, and all that dwell in thy house shall go into captivity; and thou shalt come to Babylon, and there thou shalt die, and there shalt thou be buried, thou, and all thy friends, to whom thou hast prophesied falsely." — Jeremiah 20:6 (ASV)

You have prophesied lies - Pushur belonged to the warlike party, whose creed it was, that Judea by a close alliance with Egypt might resist the arms of Assyria.