1. A renowned sage
For he was wiser than all men; than Ethan the Ezrahite, and Heman, and Chalcol, and Darda, the sons of Mahol: and his fame was in all nations round about. (1 Kings 4:31)
See title
Psalm 89.
2. Son of Zerak
And the sons of Zerah; Zimri, and Ethan, and Heman, and Calcol, and Dara: five of them in all. (1 Chronicles 2:6)
And the sons of Ethan; Azariah. (1 Chronicles 2:8)
Two Levites
The son of Ethan, the son of Zimmah, the son of Shimei, (1 Chronicles 6:42)
And their brethren the sons of Merari stood on the left hand: Ethan the son of Kishi, the son of Abdi, the son of Malluch, (1 Chronicles 6:44)
So the Levites appointed Heman the son of Joel; and of his brethren, Asaph the son of Berechiah; and of the sons of Merari their brethren, Ethan the son of Kushaiah; (1 Chronicles 15:17)
So the singers, Heman, Asaph, and Ethan, were appointed to sound with cymbals of brass; (1 Chronicles 15:19)