Albert Barnes Commentary Jeremiah 43:8

"Then came the word of Jehovah unto Jeremiah in Tahpanhes, saying," — Jeremiah 43:8 (ASV)

On arriving at the frontiers of Egypt, the captains would be compelled to halt in order to obtain the king’s permission to enter his country. Jeremiah therefore takes the opportunity to predict, first, the downfall of Egypt; and secondly, that of the false gods.