Second Book of Paralipomenon (Author Compiled by Isaias and Esdras from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
Chapter 20
26die autem quarto congregati sunt in valle Benedictionis etenim quoniam ibi benedixerant Domino vocaverunt locum illum vallis Benedictionis usque in praesentem diem
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.