'Descendants' in the Bible

"The words of Jonadab, the son of Rechab, that he commanded his descendants to not drink, have been carried out, and they have not drunk until this day, for they have obeyed the command of their ancestor. But {I have spoken to you over and over again}, and you have not listened to me.

For the descendants of Jonadab, the son of Rechab, have carried out the command of their ancestor that he commanded them, but this people did not listen to me."