These are the men David put in charge of music in the Lord’s sanctuary, ¹  after the ark was placed there.

In Jerusalem Jehoshaphat appointed some Levites, priests, and Israelite family leaders to judge on behalf of the Lord ¹  and to settle disputes among the residents of Jerusalem. ² 

So Esther called for Hathach, one of the king’s eunuchs who had been placed at her service, ¹  and instructed him to find out the cause and reason for Mordecai’s behavior. ²