1 Chronicles 6:2

The second son, Kohath , rather Kehath, is at once singled out, in order to get at the priest line. He was one of the travellers with Jacob into Egypt, was probably about twenty years the junior of Joseph, lived thirty years after his death, and attained the age of one hundred and thirty-three years, after a residence in Egypt of about one hundred and fifteen years in all. The Kohathites are expressly mentioned in their sacred duties in the time of David ( 1 Chronicles 15:5-8 ), and in the time of Hezekiah ( 2 Chronicles 29:12-14 ). The four sons of Kohath are next instanced, in order to get another step nearer the clear beginning of the priest line. This is done in the person of the oldest brother, Amram , who became father of Aaron and Moses and Miriam.