Nehemiah 11:23

Amplified Bible

²³For there was a ^[a]command from the [^[b]Persian] king regarding the singers, as to their daily task.

Nehemiah 11:23 Some believe this refers to the regulations established by King David instead of the Persian king; however, Ezra 6:9, 10 records the fact that King Darius supplied appropriate items for sacrifice and requested daily prayers for “...the king and his sons.” Artaxerxes may have continued this practice.
Nehemiah 11:23 Artaxerxes.