Sacraments, therefore, are exercises which confirm our faith in the word of God; and because we are carnal, they are exhibited under carnal objects, that thus they may train us in accommodation to our sluggish capacity, just as nurses lead children by the hand. And hence Augustine calls a sacrament a visible word (August. in Joann. Hom. 89), because it represents the promises of God as in a picture, and places them in our view in a graphic bodily form (August. cont. Faust. Lib. 19).
