Pot
Pots" and other large vessels in the Bible represent facts and factual ideas, which serve as containers for truth the same way pots serve as containers for water or wine. Pots fill their function because they are hard, strong and impervious; facts are also absolute and unchanging, filling their function the same way. And pots must be filled to serve any use, just as facts must be filled with truth to serve any purpose. To some extent this meaning also applies to cups, bowls and other smaller vessels, though it is a little more immediate. Generally you don't fill a cup so you can store a liquid; you fill it to drink it. Smaller vessels then often take more of their meaning from the substance they contain, and in many cases ("cup" and "wine" especially) actually mean the same thing.
Jeremiah 32:30-35
30
For the children of Israel and the children of Judah have done only that which was evil in my sight from their youth; for the children of Israel have only provoked me to anger with the work of their hands, says Yahweh.
31
For this city has been to me a provocation of my anger and of my wrath from the day that they built it even to this day; that I should remove it from before my face,
32
because of all the evil of the children of Israel and of the children of Judah, which they have done to provoke me to anger, they, their kings, their princes, their priests, and their prophets, and the men of Judah, and the inhabitants of Jerusalem.
33
They have turned to me the back, and not the face: and though I taught them, rising up early and teaching them, yet they have not listened to receive instruction.
34
But they set their abominations in the house which is called by my name, to defile it.
35
They built the high places of Baal, which are in the valley of the son of Hinnom, to cause their sons and their daughters to pass through [the fire] to Molech; which I didn't command them, neither did it come into my mind, that they should do this abomination, to cause Judah to sin.
