Jerome
Catena Aurea · Markusevangelium 1
John did baptize in the wilderness, and preach the baptism of repentance for the remission of sins. And there went out unto him all the land of Judæa, and they of Jerusalem, and were all baptized of him in the river of Jordan, confessing their sins. And John was clothed with camel’s hair, and with a girdle of a skin about his loins; and he did eat locusts and wild honey; And preached, saying, There cometh one mightier than I after me, the latchet of whose shoes I am not worthy to stoop down and unloose. I indeed have baptized you with water: but he shall baptize you with the Holy Ghost.
For what is the difference between water and the Holy Ghost, who was borne over the face of the waters? Water is the ministry of man; but the Spirit is ministered by God.