The priest's office — So did all the rest, but it is implied that he did it worthily, he filled his place, and valiantly discharged his office in Uzziah's time. Solomon built — In Solomon's temple; so called to distinguish it from the second temple which was built or in building when these books were written.
Related Commentaries of 1 Chronicles 6:10
1 Chronicles 6:10
10 And Johanan begat Azariah, (he it is that executed the priest's office in the templeb that Solomon built in Jerusalem:)