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.
Deuteronomy 30:1-3
1
It shall happen, when all these things have come on you, the blessing and the curse, which I have set before you, and you shall call them to mind among all the nations, where Yahweh your God has driven you,
2
and shall return to Yahweh your God, and shall obey his voice according to all that I command you this day, you and your children, with all your heart, and with all your soul;
3
that then Yahweh your God will turn your captivity, and have compassion on you, and will return and gather you from all the peoples, where Yahweh your God has scattered you.
