St. Cyril of Jerusalem ca. 313-386
But if any one wishes to know why the grace is given by water and not by a different element, let him take up the Divine Scriptures and he shall learn. For water is a grand thing, and the noblest of the four visible elements of the world. Heaven is the dwelling-place of Angels, but the heavens are from the waters : the earth is the place of men, but the earth is from the waters: and before the whole six days’ formation of the things that were made, the Spirit of God moved upon the face of the water. Gen. 1:2 The water was the beginning of the world, and Jordan the beginning of the Gospel tidings: for Israel deliverance from Pharaoh was through the sea, and for the world deliverance from sins by the washing of water with the word Eph. 5:26 of God. Where a covenant is made with any, there is water also. After the flood, a covenant was made with Noah: a covenant for Israel from Mount Sinai, but with water, and scarlet wool, and hyssop. Heb. 9:19 Elias is taken up, but not apart from water: for first he crosses the Jordan, then in a chariot mounts the heaven. The high-priest is first washed, then offers incense; for Aaron first washed, then was made high-priest: for how could one who had not yet been purified by water pray for the rest? Also as a symbol of Baptism there was a laver set apart within the Tabernacle. (Catechetical Lectures, 3.5)
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