The second part of baptism is the sign, or sacrament, which is that immersion into water whence also it derives its name; for the Greek _baptizo_ means I immerse, and _baptisma_ means immersion. For, as has been said[93], signs are added to the divine promises to represent that which the words signify, for, as they now say, that which the sacrament "effectively signifies." We shall see how much of truth there is in this. The great majority have supposed that there is some hidden spiritual power in the word or in the water, which works the grace of God in the soul of the recipient. Others deny this and hold that there is no power in the sacraments, but that grace is given by God alone, Who according to His covenant aids the sacraments He has instituted[94]. Yet all are agreed that the sacraments are effective signs of grace, and they reach this conclusion by this one argument: If the sacraments of the New Law merely "signified," it would not be apparent in what respect they surpassed the sacraments of the Old Law. Hence they have been driven to attribute such great power to the sacraments of the New Law that in their opinion they benefit even such men as are in mortal sins, and that they do not require faith or grace; it is sufficient not to oppose a "bar," that is, an actual intention to sin again. But these views must be carefully avoided and shunned, because they are godless and infidel, being contrary to faith and to the nature of the sacraments. For it is an error to hold that the sacraments of the New Law differ from those of the Old Law in the efficacy of their "signifying." The "signifying" of both is equally efficacious. The same God Who now saves me by baptism saved Abel by his sacrifice, Noah by the bow, Abraham by circumcision, and all the others by their respective signs. So far as the "signifying" is concerned, there is no difference between a sacrament of the Old Law and one of the New; provided that by the Old Law you mean that which God wrought among the patriarchs and other fathers in the days of the law. But those signs which were given to the patriarchs and fathers must be sharply distinguished from the legal types which Moses instituted in his law, such as the priestly rites concerning robes, vessels, meats, dwellings, and the like. Between these and the sacraments of the New Law there is a vast difference, but no less between them and those signs that God from time to time gave to the fathers living judges under the law, such as the sign of Gideon's fleece [Judges 6:36], Manoah's sacrifice [Judges 13:19], or the sign which Isaiah offered to Ahaz, in Isaiah vii [Isa. 7:10]; for to these signs God attached a certain promise which required faith in Him.