'Commandment' in the Bible

For there was a commandment from the king concerning them, and a settled provision for the singers, as every day required.

The chiefs of the Levites: Hashabiah, Sherebiah, and Jeshua the son of Kadmiel, with their brothers over against them, to praise and give thanks, according to the commandment of David the man of God, watch next to watch.

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

had prepared for him a great room, where before they laid the meal offerings, the frankincense, and the vessels, and the tithes of the grain, the new wine, and the oil, which were given by commandment to the Levites, and the singers, and the porters; and the wave offerings for the priests.