Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
6:18hostes vero descenderunt ad eum porro Heliseus oravit Dominum dicens percute obsecro gentem hanc caecitate percussitque eos Dominus ne viderent iuxta verbum Helisei
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.