First Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
Chapter 28
21ecce divisiones sacerdotum et Levitarum in omne ministerium domus Domini adsistunt tibi et parati sunt et noverunt tam principes quam populus facere omnia praecepta tua
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.