Make you an ark of gopher wood; rooms shall you make in the ark, and shall pitch it inside and outside with pitch.
Read Chapter 6
Augustine of Hippo
Undoubtedly the ark is a symbol of the city of God on its pilgrimage in history. It is a figure of the church that was saved by the wood on which there hung the “Mediator between God and men, himself man, Jesus Christ.” Even the very measurements of length, height and breadth of the ark are meant to point to the reality of the human body into which he came as it was foretold that he would come. It will be recalled that the length of a normal body from head to foot is six times the breadth from one side to the other and ten times the thickness from back to front. Measure a man who is lying on the ground, either prone or supine. He is six times as long from head to foot as he is wide from left to right or right to left, and he is ten times as long as he is high from the ground up. That is why the ark was made three hundred cubits in length, fifty in breadth and thirty in height. As for the door in the side, that surely, symbolizes the open wound made by the lance in the side of the Cruci...
Timber planks. Hebrew, "gopher wood "which is no where else mentioned in Scripture. It was probably a sort of wood full of rosin, and being besmeared with something like our pitch, was capable of resisting the fury of the ensuing tremendous storm, for a length of time. (Calmet; Haydock)
Rooms to separate the birds, various animals, provisions
Pitch, literally: "besmear it with bitumen "which has a very strong smell, able to counteract the disagreeable odours arising from beasts confined. (Menochius)
It might be mixed with some other ingredients, naphtha, pitch (Calmet) ...
We read in Genesis that the ark that Noah built was three hundred cubits long, fifty cubits wide and thirty cubits high. Notice the mystical significance of the numbers. In the number fifty, penance is symbolized because the fiftieth psalm of King David is the prayer of his repentance. Three hundred contains the symbol of crucifixion. The letter T is the sign for three hundred, whence Ezekiel says, “Mark THAV on the forehead of those who moan; and do not kill any marked with THAV.” No one marked with the sign of the cross on his forehead can be struck by the devil; he is not able to efface this sign, only sin can. We have spoken of the ark, of the number fifty, of the number three hundred. Let us comment on the number thirty because the ark was thirty cubits high and finished above in one cubit. First, we repent in the number fifty; then, through penance, we arrive at the mystery of the cross; we reach the mystery of the cross through the perfect Word that is Christ. As a matter of fac...