For as the ark [of the covenant] was gilded within and without with pure gold, so was also the body of Christ pure and resplendent; for it was adorned within by the Word, and shielded without by the Spirit, in order that from both [materials] the splendor of the natures might be clearly shown forth.
…so is that ark declared a type of the body of Christ, which is both pure and immaculate.
Irenaeus of Lyons
Lost Writings
Fragment VIII and XLVIII