First Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
23:31tam in oblatione holocaustorum Domini quam in sabbatis et kalendis et sollemnitatibus reliquis iuxta numerum et caerimonias uniuscuiusque rei iugiter coram Domino
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.