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.
1 Samuel 19:20-24
20
Saul sent messengers to take David: and when they saw the company of the prophets prophesying, and Samuel standing as head over them, the Spirit of God came on the messengers of Saul, and they also prophesied.
21
When it was told Saul, he sent other messengers, and they also prophesied. Saul sent messengers again the third time, and they also prophesied.
22
Then went he also to Ramah, and came to the great well that is in Secu: and he asked, "Where are Samuel and David?" One said, "Behold, they are at Naioth in Ramah."
23
He went there to Naioth in Ramah. Then the Spirit of God came on him also, and he went on, and prophesied, until he came to Naioth in Ramah.
24
He also stripped off his clothes, and he also prophesied before Samuel, and lay down naked all that day and all that night. Therefore they say, "Is Saul also among the prophets?"
