כִּֽי־מִצְוַ֥ת הַמֶּ֖לֶךְ עֲלֵיהֶ֑ם וַאֲמָנָ֥ה עַל־הַמְשֹׁרְרִ֖ים דְּבַר־י֥וֹם בְּיוֹמֽוֹ׃
For there was a commandment from the king concerning them, and a sure ordinance concerning the singers, as every day required.
Rashi on Nehemiah
For the command of the king was upon them and [his] trust The king trusted them.
Rashi on Nehemiah
upon the singers to spend money from King Darius’s treasury.
Rashi on Nehemiah
for the daily requirements in order to perform the requirements of the Temple.