Bible Notes Online - Jeremiah 19 - ESV
Commentary

v1: Following from chapter 18, Jeremiah bought a potter's clay jar. He would take it outside the city, to be smashed.

v2-3: The jar was to be Jeremiah's next object lesson, as he declared the word of God to the elders and priests. The message, as before, was one of impending disaster.

v4-6: Jeremiah was in the Valley of Ben Hinnom, near Jerusalem. This was a place of wholesale idolatry, see 7.31-32.

v4: The place had been given over to foreign gods, it became an 'alien place' (RAV). The people had brought idolatry to the heart of the nation, to Jerusalem, where God's temple was. Further, idol worship demanded child sacrifice, and this had also happened.

v5: They worshipped Baal, not something commanded by God.

v6: The same place would become a place of slaughter, and the idols could do nothing to prevent it.

v7-9: The schemes of the people, seeking to avoid the advancing Babylonian army, would be frustrated. Many would die by the sword, and many would suffer from famine. The city itself would become an object of scorn.

v10-13: The jar smashed, like the nation, and cannot be repaired.

v14-15: Words belonging in chapter 20, which bring on the attack from Pashhur, the priest. Jeremiah said that the judgments he had described were not inevitable, but depended on the people's lack of obedience.