Albert Barnes Commentary Jeremiah 7:13

"And now, because ye have done all these works, saith Jehovah, and I spake unto you, rising up early and speaking, but ye heard not; and I called you, but ye answered not:" — Jeremiah 7:13 (ASV)

Rising up early and speaking - a proverbial expression for “speaking zealously and earnestly.” It is used only by Jeremiah.