King James Version
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.English Standard Version
And they performed the service of their God and the service of purification, as did the singers and the gatekeepers, according to the command of David and his son Solomon.New International Version
They performed the service of their God and the service of purification, as did also the singers and gatekeepers, according to the commands of David and his son Solomon.