1 Chronicles 6:33

Now there was a certain man from Ramathaim-zophim from the hill country of Ephraim, and his name was Elkanah the son of Jeroham, the son of Elihu, the son of Tohu, the son of Zuph, an Ephraimite.

The sons of Samuel were Joel the firstborn, and Abijah the second.

Now these are the singers, heads of fathers’ households of the Levites, who lived in the chambers of the temple free from other service; for they were over them in their work day and night.

And with them were Heman and Jeduthun, and the rest who were chosen, who were designated by name, to give thanks to Yahweh, because His lovingkindness endures forever.

Moreover, David and the commanders of the army separated for the service some of the sons of Asaph and of Heman and of Jeduthun, who were to prophesy with lyres, harps, and cymbals; and the number of those who performed their service was: