Get (i. e., purchase) a potter’s earthen bottle - The “bottle” was a flask with a long neck, and took its name from the noise made by liquids in running out.
The ancients - These “elders” were the regularly constituted representatives of the people (see Jeremiah 29:1; Numbers 11:16), and the organization lasted down to our Saviour’s time Matthew 26:47. Similarly the priests had also their representatives 2 Kings 19:2. Accompanied thus by the representatives of Church and State, the prophet was to carry the earthen bottle, the symbol of their mean origin and frail existence, outside the walls of Jerusalem.