Pitch is a petroleum by-product which is the base material for coal tar, asphalt and bitumen.
It is in great abundance in the region where Noah and his family lived. Pitch is still used as a waterproofing compound in the building industry today. The pitch that covers the Ark on the inside and the outside therefore prefigures the atonement by the blood of the Lord Jesus Christ. Christians are cleansed by the blood of the Lord Jesus Christ on the inside and the outside. The internal cleansing is effected in two ways.