John Gill Commentary Jeremiah 19:15

"Thus saith Jehovah of hosts, the God of Israel, Behold, I will bring upon this city and upon all its towns all the evil that I have pronounced against it; because they have made their neck stiff, that they may not hear my words." — Jeremiah 19:15 (ASV)

Thus says the Lord of hosts, the God of Israel (See Gill on Jeremiah 19:3); behold, I will bring upon this city, and upon all her towns : the city of Jerusalem, and all the cities and towns near it, even all the cities and towns in Judea; of which Jerusalem was the metropolis, and therefore called hers:

all the evil that I have pronounced against it ; or decreed against it, as the Targum; all that he has purposed, and all that he has threatened, or spoke of by the Prophet Jeremiah, or any other of his prophets; for whatever he has said he will do, and whatsoever he has solved upon, and declared he will do, he assuredly brings to pass:

because they have hardened their necks, that they might not hear my words ; they turned their backs upon him, pulled away the shoulder, stopped their ears that they might not hear what was said by the prophets from the Lord; they neither inclined their ears to hearken to, nor bowed their necks to receive the yoke of his precepts; but, on the contrary, were, as was their general character, a stiffnecked people, and uncircumcised in heart and ears, obstinate and disobedient; and this was the cause of their ruin, by which it appeared to be just and righteous.