Second Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
30:3non enim occurrerant facere in tempore suo quia sacerdotes qui possent sufficere sanctificati non fuerant et populus necdum congregatus erat in Hierusalem
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.