C. F. Keil and Franz Delitzsch on Jeremiah 18:11-12

Jer 18:11-12

In Jer 18:11 and Jer 18:12 what was said at Jer 18:6. is applied to Judah. יצר, from in sense of prepare (cf. Isa 22:11; Isa 37:26), is chosen with special reference to the potter (יוצר). מחשׁבה, the thought, design, here in virtue of the parallelism: evil plot, as often both with and without רעה; cf. Est 8:3, Est 8:5; Est 9:25; Eze 38:10. The call to repentance runs much as do Jer 35:15 and Jer 7:3. - But this call the people reject disdainfully, replying that they are resolved to abide by their evil courses. ואמרוּ, not: they said, but: they say; the perf. consec. of the action repeating itself at the present time; cf. Ew. 342, b. 1. נואשׁ as in Jer 2:25; on "stubbornness of their evil heart," cf. Jer 3:17. By this answer the prophet makes them condemn themselves out of their own mouth; cf. Isa 28:15; Isa 30:10.