Fourth Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
20:1in diebus illis aegrotavit Ezechias usque ad mortem et venit ad eum Esaias filius Amos prophetes dixitque ei haec dicit Dominus Deus praecipe domui tuae morieris enim et non vives
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.