Second Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
6:41nunc igitur consurge Domine Deus in requiem tuam tu et arca fortitudinis tuae sacerdotes tui Domine Deus induantur salute et sancti tui laetentur in bonis
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.