Nehemiah 12:45

And they kept the charges of their God, and the charges of the purification, and [ordered] the singers and the porters, according to the commandments of David and his son Solomon.

And both the singers and the porters kept the ward of their God, and the ward of the purification, according to the commandment of David, and of Solomon his son.

They performed the duty of their God and the duty of the purification, and so did the singers and the gatekeepers, according to the commandment of David and of Solomon his son.