What does Jeremiah 35:10 mean?

You shall not build a house, sow seed, plant a vineyard, or have any; but all your days you shall dwell in tents, that you may live many days in the land in which you live as nomads.’

We have obeyed the voice of Jonadab the son of Rechab, our father, in all that he commanded us, to drink no wine all our days, we, our wives, our sons, or our daughters;

and not to build houses for ourselves to dwell in. We have no vineyard, field, or seed;

But when Nebuchadnezzar king of Babylon came up into the land, we said, ‘Come, and let us go to Jerusalem for fear of the army of the Chaldeans, and for fear of the army of the Syrians; so we will dwell at Jerusalem.’”

Then Yahweh’s word came to Jeremiah, saying,

“Yahweh of Armies, the God of Israel, says: ‘Go and tell the men of Judah and the inhabitants of Jerusalem, “Will you not receive instruction to listen to my words?” says Yahweh.