⁴⁵ They performed the service of their God and the service of purification, as did also the musicians and gatekeepers, according to the commands of David^(A) and his son Solomon.^(B)

⁴⁶ For long ago, in the days of David and Asaph,^(A) there had been directors for the musicians and for the songs of praise^(B) and thanksgiving to God.