1 Chronicles 6:5

and Abishua begat Bukki, and Bukki begat Uzzi. It is true that members of the line of Ithamar occupied the office of high priest for a number of generations at this time, Eli being one of them, 1 Samuel 2:30; but this does not alter the fact that the line of Eleazar alone was really legitimate, and was later restored to its rightful position.