Divrey Hayamim Alef 23:11-13

Orthodox Jewish Bible

¹¹ And Yachat was rosh, and Zizah the second; but Yeush and Beriah had not many banim; therefore they were in pekudah echad (one reckoning), according to their bais av.

¹² The Bnei Kehat; Amram, Yitzhar, Chevron, and Uzziel, four.

¹³ The Bnei Amram; Aharon and Moshe; Aharon was separated, to set him apart as Kodesh Kodashim, he and his banim ad olam, to burn offerings before Hashem, to minister unto Him, and to bless b’Shmo ad olam.