Genesis 6:15

THE CAPACITY OF NOAH’S ARK. — It is also asked how, with its dimensions as described, the Ark of Noah could contain all the animals that entered it, and their food. This question was resolved by Origen (Hom. 2 in Gen.) by means of geometrical cubits; for he argued that Scripture does not say without reason that Moses was adorned with all the wisdom of the Egyptians, (Act 7:22) who had in great esteem in geometry. The geometrical cubit, according to Origen, is equal to six of our cubits. Now, taking this great measure as the basis of our calculation, there is no problem in admitting that the ark was of sufficient capacity to contain all this. [

The length of the ark shall be three hundred cubits, its width fifty cubits, and its height thirty cubits. The length of the ark signifies the long-suffering patience by which adversities are bravely endured; the width signifies the breadth of charity, which embraces even those who inflict adversities; the height signifies the sublimity of hope, by which the eternal reward in heaven is insinuated. Hence the length of the ark is commanded to be three hundred cubits, as this number, as we have previously noted, is represented by the letter T in Greek. This letter is written in the shape of a cross, because the holy Church, while remaining invincible and steadfast amid adversities, follows the footsteps of the Lord's passion, remembering His word where He said: And he who does not take up his cross and follow me is not worthy of me (Matthew 10:38). The width extends to fifty cubits, in which number the Holy Spirit is sent, and under the law universal rest and remission are bestowed upon God's people because the love of God is poured into our hearts, not by the merit of our actions but by the Holy Spirit who has been given to us. And this is rest and remission of our debts, when we love God with all our heart, all our soul, all our strength, and our neighbor in God as ourselves, and our adversary for the sake of God. The height is thirty cubits, because this is the only and unique hope of the elect, that through the observation of the Decalogue, which is perfected in the love of God and neighbor, they ascend to the contemplation of the Holy Trinity. For three times ten makes thirty.

There is, however, another memorable mystery in the shape of the ark, which is found to be formed according to the measure of the human body. For the length of the human body from the top of the head to the feet is six times the height from one side to the other, and ten times the height measured from the back to the abdomen, as if you measure a lying man supine or prone; the length from head to feet is six times as long as the width from right to left or left to right, and ten times as high from the ground. Therefore, the ark was made three hundred cubits in length, fifty in width, and thirty in height; and because the Apostle says of the Church that it is one body and one spirit in Christ, rightly the ark, which bore the figure of this, was formed in the likeness of the human body, because Christ Himself, God, and our Lord willed to be incarnated for us and to wash us from sins and consecrate us through the sacraments of His humanity. Rightly, He commanded that the ark, in which He decreed to save the remnants of the human race while the wicked perished, be made in the manner of the human body, just as the temple which Solomon made for the Lord not only prefigured His Church, but also His flesh itself, which He took from the Virgin, as He Himself testified when He said to the Jews, "Destroy this temple, and in three days I will raise it up." The evangelist said this, meaning the temple of His body (John 2:19). Thus also, the ark, which Noah made in the form of the human body, held our type, of whom the Apostle said, "Until we all attain to the unity of the faith and of the knowledge of the Son of God, to mature manhood" (Ephesians 4:13); and of the Lord Himself, who deigned to gather us into the unity of faith through the mystery of His Incarnation and to cleanse us from sins by the grace of the Holy Spirit, which the dove bringing the olive branch to the ark symbolized, and to save us from the destruction of the perishing world.