Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
6:20cumque ingressi fuissent in Samaria dixit Heliseus Domine aperi oculos istorum ut videant aperuitque Dominus oculos eorum et viderunt esse se in medio Samariae
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.