There are yet a few other things it might seem possible to regard as sacraments; namely, all those to which a divine promise has been given, such as prayer, the Word, and the cross. Christ promised, in many places, that those who pray should be heard; especially in Luke xi, where He invites us in many parables to pray [Luke 11:5 ff.]. Of the Word He says: "Blessed are they that hear the word of God, and keep it." [Luke 11:28] And who will tell how often He promises aid and glory to such as are afflicted, suffer, and are cast down? Nay, who will recount all the promises of God? The whole Scripture is concerned with provoking us to faith; now driving us with precepts and threats, now drawing us with promises and consolations. Indeed, whatever things are written are either precepts or promises; the precepts humble the proud with their demands, the promises exalt the humble with their forgiveness. [Sidenote: Baptism and Bread the Only Sufficient Sacraments] Nevertheless, it has seemed best to restrict the name of sacrament to such promises as have signs attached to them. The remainder, not being bound to signs, are bare promises. Hence there are, strictly speaking, but two sacraments in the Church of God--baptism and bread; for only in these two do we find both the divinely instituted sign and the promise of forgiveness of sins. The sacrament of penance, which I added to these two[195] lacks the divinely instituted visible sign, and is, as I have said[196], nothing but a return to baptism. Nor can the scholastics say that their definition fits penance, for they too ascribe to the sacrament a visible sign, which is to impress upon the senses the form of that which it effects invisibly. But penance, or absolution, has no such sign; wherefore they are constrained by their own definition, either to admit that penance is not a sacrament, and thus to reduce the number of sacraments, or else to bring forward another definition.