Luther at first set out, in appearance at least, from principles very similar to those of the Zurich doctor. "It is not the sacrament that sanctifieth," said he, "but faith in the sacrament." But the extravagances of those whose mysticism spiritualized everything, led to a great change in his views. When he saw enthusiasts who pretended to a particular inspiration, breaking images, rejecting baptism,[618] and denying the presence of Christ in the Lord's Supper, he was alarmed; he had a sort of prophetic presentiment of the dangers that would threaten the Church if this ultra-spiritual tendency should get the upperhand, and he accordingly threw himself into the very opposite course; like a pilot who, seeing his boat lean too much on one side and near foundering, throws himself on the other to restore the equilibrium. [618] Vol. I. p. 145 bot. From that time Luther attached a higher importance to the sacraments. He maintained that they were not only signs, by means of which Christians were outwardly distinguished, as Zwingle said, but testimonials of the Divine will, calculated to strengthen our faith. More than this, Christ, in his view, had determined to give believers a full assurance of their salvation, and in order to seal this promise in the most effectual manner, he had added his real body to the bread and wine. "Just as iron and fire," continued he, "which are nevertheless two distinct substances, are confounded together in a heated mass of iron so that in each of its parts there is at once iron and fire; in like manner, and with much greater reason, the glorified body of Christ is found in all the parts of the bread." [Sidenote: RESPECT FOR TRADITION.] Thus at this period there seems to have been some return on the part of Luther towards the scholastic theology. In his doctrine of justification by faith he had entirely renounced it; but in that of the sacrament he abandoned one point only, transubstantiation, and preserved the other, the corporeal presence. He even went so far as to say, that he would rather receive the blood only with the pope, than the wine only with Zwingle.