'Leader' in the Bible

“They refused to listen,And did not remember Your wondrous deeds which You had performed among them;So they became stubborn and appointed a leader to return to their slavery in Egypt.But You are a God of forgiveness,Gracious and compassionate,Slow to anger and abounding in lovingkindness;And You did not forsake them.

Seraiah the son of Hilkiah, the son of Meshullam, the son of Zadok, the son of Meraioth, the son of Ahitub, the leader of the house of God,

and Mattaniah the son of Mica, the son of Zabdi, the son of Asaph, who was the leader in beginning the thanksgiving at prayer, and Bakbukiah, the second among his brethren; and Abda the son of Shammua, the son of Galal, the son of Jeduthun.

and Maaseiah, Shemaiah, Eleazar, Uzzi, Jehohanan, Malchijah, Elam and Ezer. And the singers sang, with Jezrahiah their leader,