And God said,
Let the waters bring forth abundantly the moving creature that has life, and fowl that may fly above the earth in the open firmament of heaven.
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Basil the Great
6. Let husbands listen as well: here is a lesson for them. The viper vomits forth its venom in respect for marriage; and you, will you not put aside the barbarity and the inhumanity of your soul, out of respect for your union? Perhaps the example of the viper contains another meaning. The union of the viper and of the lamprey is an adulterous violation of nature. You, who are plotting against other men's wedlock, learn what creeping creature you are like. I have only one object, to make all I say turn to the edification of the Church. Let then libertines put a restraint on their passions, for they are taught by the examples set by creatures of earth and sea.
My bodily infirmity and the lateness of the hour force me to end my discourse. However, I have still many observations to make on the products of the sea, for the admiration of my attentive audience. To speak of the sea itself, how does its water change into salt? How is it that coral, a stone so much esteemed, is a plant in the midst of the sea, and when once exposed to the air becomes hard as a rock? Why has nature enclosed in the meanest of animals, in an oyster, so precious an object as a pearl? For these pearls, which are coveted by the caskets of kings, are cast upon the shores, upon the coasts, upon sharp rocks, and enclosed in oyster shells. How can the sea pinna produce her fleece of gold, which no dye has ever imitated? How can shells give kings purple of a brilliancy not surpassed by the flowers of the field?