'Elders of the House of Israel' in the Bible

There stood before them seventy men of the elders of the house of Israel; and in the midst of them stood Jaazaniah the son of Shaphan, every man with his censer in his hand; and the odor of the cloud of incense went up.

Then he said to me, Son of man, have you seen what the elders of the house of Israel do in the dark, every man in his rooms of imagery? for they say, Yahweh doesn't see us; Yahweh has forsaken the land.