Noah's Ark ark could contain all the animals in the world, argued that Moses, the traditional author of the book of Genesis, had been brought up in Egypt and would therefore have used the larger Egyptian cubit. He also fixed the shape of the ark as a truncated pyramid, square at its base, and tapering to a square peak one cubit on a side; it was not until the 12th century that it came to be thought of as a rectangular box with a sloping roof. Early Christian artists depicted Noah standing in a small box on the waves, symbolizing God saving
Book of Noah compounded of the Semjaza and Azazel myths, and in its present composite form is already presupposed by 1 Enoch 88-90. Hence these chapters are earlier than 166 B.C. Chapters 106-107 of the same book are probably from the same source; likewise 54:7-55:2, and Jubilees 7:20-39, 10:1-15. In the former passage of Jubilees the subject-matter leads to this identification, as well as the fact that Noah is represented as speaking in the first person, although throughout Jubilees it is the angel that speaks. Possibly Eth. En. 41:3-8, 43-49, 59 are from the same work. The book may have opened with Eth.