As for the Izharites: Kenaniah and his sons were given responsibilities outside the temple ¹  as officers and judges over Israel.

they brought in the contributions, tithes, ¹  and consecrated items that had been offered. ²  Konaniah, a Levite, was in charge of all this, assisted by his brother Shimei.

Jehiel, Azaziah, Nahath, Asahel, Jerimoth, Jozabad, Eliel, Ismakiah, Mahath, and Benaiah worked under the supervision of Konaniah and his brother Shimei, as directed by King Hezekiah and Azariah, the supervisor of God’s temple.