1 Chronicles 24:1-3

Rotherham(i) 1 Now, the sons of Aaron, had their courses,––the sons of Aaron, Nadab and Abihu, Eleazar and Ithamar; 2 but Nadab and Abihu, died, before their father, and sons, had they none,––but Eleazar and Ithamar became priests; 3 and David apportioned to them courses, both to Zadok of the sons of Eleazar, and to Ahimelech of the sons of Ithamar,––by their appointed place in their service.