'Elderhood' in the Bible

And when they heard it, they entered very early into the temple and taught. And when the high priest was come, and they that were with him, they called together the council and all the elderhood of the sons of Israel, and sent to the prison to have them brought.

as also the high priest bears me witness, and all the elderhood: from whom also, having received letters to the brethren, I went to Damascus to bring those also who were there, bound, to Jerusalem, to be punished.