Jeremiah 35:10

But we have dwelt in tents, and have obeyed, and done according to all that Jonadab our father commanded us.

The Rechabites went on living in tents and did everything that Jonadab their father had commanded them. Their obedience included abstaining from wine. Their course was loyalty lived out in a simple, temperate way of life. That faithfulness stood in contrast to Judah's disobedience to God, which continued despite the light and instruction Judah had received and despite God's words and warnings.