v1-4: As in 1.11,13, Jeremiah had to observe and learn, as well as listen and learn. The events he observed at the potter's house are ordinary, an everyday occurrence.
The lessons here echo Jeremiah’s own call; to uproot, tear down, and destroy; and to build up and to plant.
v5-6: God has the absolute right to do with Israel as He pleases. This is the basic meaning of the potter and the clay.
v7-10: The Lord will response according to genuine repentance.
The Lord announces His intention to uproot, to tear down, to destroy, to build, to plant (as in 1.10). Jeremiah was intimately involved in these things, as God's prophet. But where the people repented, then God would not deliver the disaster. When some disobeyed, then God would not deliver the promised good.
The message is clear; each nation was accountable to God.
v11: Specific application to Judah; disaster is planned, therefore repent. The potter's house illustration was no clever parable, but powerful truth. The words translated ‘preparing’ and ‘devising’ and words related to the work of a potter.
v12: The people's response, as Jeremiah delivered the word of the Lord; they rejected the message, and deliberately chose sin. Jeremiah had to endure this rejection, see Ezek 2.7-8, and he had to continue to declare God's words.
v13-14: See 2 .10-13 and 1 Cor 5.1; even unbelievers recognised Israel's folly and hypocrisy.
v15-17: As we frequently read, the people of God had turned from Him, and had chosen idols. The result was to be disaster.
v18: The leaders gathered together against Jeremiah, compare Ps 2.2, showing Jeremiah's life to be a picture of Christ's. See 11.9, the conspiracy among the people, the deliberate plan to reject God, and to persecute His messengers.
v19-23: Jeremiah's prayer; in line with God's word, see 7.16-20; 16.5-9. He was praying what God had said would happen. Note too (v20) that he had prayed for them, that God's wrath be averted.