I answer that, As stated above (Article 11), the shedding of blood for Christ’s sake, and the inward operation of the Holy Ghost, are called baptisms, in so far as they produce the effect of the Baptism of Water. Now the Baptism of Water derives its efficacy from Christ’s Passion and from the Holy Ghost, as already stated (III:11. These two causes act in each of these three Baptisms; most excellently, however, in the Baptism of Blood. For Christ’s Passion acts in the Baptism of Water by way of a figurative representation; in the Baptism of the Spirit or of Repentance, by way of desi.e. but in the Baptism of Blood, by way of imitating the (Divine) act. In like manner, too, the power of the Holy Ghost acts in the Baptism of Water through a certain hidden power. in the Baptism of Repentance by moving the heart; but in the Baptism of Blood by the highest degree of fervor of dilection and love, according to John 15:13: “Greater love than this no man hath that a man lay down his life for his friends.”