Ishodad of Merv
Medieval
d. A.D. 850
“[The sea] is set on the oxen in order not to be defiled by the ground. The oxen allude to the perfect structure of the created world, because it was prescribed in the Law that this animal should be offered in sacrifice; at the same time, the nourishment of human beings reaches its maturity through the strength of the ox. Their number of twelve refers to the constant revolution of an entire year which is accomplished in twelve months. Through their division into groups of three, which are set toward each cardinal point, [the Scripture] alludes to the four seasons. Finally, "the interior of the house" is called "the space under the sea." The water contained in the sea was used for the washing of the victims. It is possible that small ships and other objects, which are connected to the sea, were on it, and for this reason it was called "the sea."”