Third Book of Kings (Author Compiled by Isaias and Jeremias from records of Nathan, Gad, Addo, Ahias, Jehu and others.)
6:12domus haec quam aedificas si ambulaveris in praeceptis meis et iudicia mea feceris et custodieris omnia mandata mea gradiens per ea firmabo sermonem meum tibi quem locutus sum ad David patrem tuum
Original from The Bible Foundation - bf.org. They claim public domain status for their original text.