1 Chronicles 6:33, 39, 44

Here are the men who served, together with their sons: From the Kohathites: Heman, the musician, the son of Joel, the son of Samuel

and Heman’s associate Asaph, who served at his right hand: Asaph son of Berekiah, the son of Shimea

and from their associates, the Merarites, at his left hand: Ethan son of Kishi, the son of Abdi, the son of Malluk