MS Oxford-Bodleian 1566, fol. 225a

Jewish Mysticism
[The word] merahefet has six crownlets [corresponding to] the six voices written in the chariot, excluding [the verse] “And I heard the voice of someone speaking” (Ezek. 1-28)… Thus it is written “like the sound of mighty waters” (ibid., 24). When were the waters mighty? I would say at the time of creation. Then the Holy One, blessed be He, decreed to unite His spirit over the prophets. “A spirit passed by me” (Job. 4-15). “And the spirit of God was over the waters.” The one who makes his heart like water will contemplate the faces of the two cherubim.

Translated by Elliot Wolfson in Through a Speculum that Shines- Vision and Imagination in Medieval Jewish Mysticism, Princeton- Princeton University Press, 1994.