'Ancestor' in the Bible

But they replied, “We do not drink wine, for Jonadab, son of our ancestor Rechab, commanded: ‘You and your sons must never drink wine.

We have obeyed the voice of Jonadab, son of our ancestor Rechab, in all he commanded us. So we haven’t drunk wine our whole life—we, our wives, our sons, and our daughters.

But we have lived in tents and have obeyed and done as our ancestor Jonadab commanded us.

Jeremiah said to the house of the Rechabites: “This is what the Lord of Hosts, the God of Israel, says: ‘Because you have obeyed the command of your ancestor Jonadab and have kept all his commands and have done all that he commanded you,