This is what the LORD says: “Go and buy a clay jar from a potter. Take some of the elders of the people and leaders of the priests,
We see that the Prophet was sent by God to shew the people that there was no firmness in that state of which hypocrites boasted; for God, who had favored the people of Israel with singular benefits, did no less retain them in his own possession than the potter.
The corruption of man having made it necessary that precept should be upon precept, and line upon line (so unapt are we to receive, and so very apt to let slip, the things of God), the grace of God has provided that there shall be, accordingly, precept upon precept, and line upon line, that those who are irreclaimable may be inexcusable.
Commenting on Jeremiah 19:1-9
Thus saith the Lord, go and get a potter's earthen bottle,.... From the potter's house, where he had lately been; and where he had been shown, in an emblematic way, what God would do in a short time with the Jews; and which is here further illustrated by this emblem: or, "go and get", or "buy, a bottle of the potter, an earthen one" (k)...