Most think that here begins a new prophecy, and therefore this verse should have began a new chapter. The prophets were often commanded to publish such revelations as they had from God, either at the gates of the city, or the gates of the temple, Jeremiah 7:2, Jeremiah 19:2. It is not agreed what this particular gate was at which the kings of Judah were wont most ordinarily to come in and go out, but the prophet was also commanded to publish it in all the gates of Jerusalem, that all might take notice of it.
Related Commentaries of Jeremiah 17:19
Jeremiah 17:19
19 Thus said the LORD unto me; Go and stand in the gate of the children of the people, whereby the kings of Judah come in, and by the which they go out, and in all the gates of Jerusalem;