2 Chronicles 31:2-3

Hezekiah organized the groups of priests and Levites for their respective tasks, handing out job descriptions for conducting the services of worship: making the various offerings, and making sure that thanks and praise took place wherever and whenever GOD was worshiped. He also designated his personal contribution for the Whole-Burnt-Offerings for the morning and evening worship, for Sabbaths, for New Moon festivals, and for the special worship days set down in The Revelation of GOD.