1 Chronicles 23:5-7

Complete Jewish Bible

⁵ 4,000 were gatekeepers, and 4,000 sang praise to Adonai “with the instruments I made for the purpose of singing praise.”

⁶ David organized them into divisions named after the sons of Levi — Gershon, K’hat and M’rari.

⁷ For the Gershuni: La‘dan and Shim‘i.