176. But lest perchance any one should speak against as it were the littleness of the Spirit, and from this should endeavour to establish a difference in greatness, arguing that water seems to be but a small part of a Fount, although examples taken from creatures seem by no means suitable for application to the Godhead; yet lest they should judge anything injuriously from this comparison taken from creatures, let them learn that not only is the Holy Spirit called Water, but also a River, as we read: “From his belly shall flow rivers of living water. But this He said of the Spirit, Whom they were beginning to receive, who were about to believe in Him.” John vii. 38, 39.