'Elders' in the Bible

This is what the Lord says: “Go, buy a potter’s clay jar. Take some of the elders of the people and some of the leading priests

Then rose up certain of the elders of the land, and spake to all the assembly of the people, saying,

Now these are the words of the letter that Jeremiah the prophet sent from Jerusalem unto the residue of the elders which were carried away captives, and to the priests, and to the prophets, and to all the people whom Nebuchadnezzar had carried away captive from Jerusalem to Babylon;