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"And God said to Noah, "I have determined to make an end of all flesh; for the earth is filled with violence through them; behold, I will destroy them with the earth. Make yourself an ark of gopher wood; make rooms in the ark, and cover it inside and out with pitch. This is how you are to make it: the length of the ark three hundred cubits, its breadth fifty cubits, and its height thirty cubits." (Genesis 6:13-15 RSV)
Cubit, from the Latin word cubitus, meaning the lower arm, is used to translate the original Biblical Hebrew word pronounced am-mah, which meant the forearm. Based on the length of a man's arm from elbow to finger tips, the cubit is one of the major Biblical Weights and Measures. Although the precise length of the Biblical cubit is unknown today, it's estimated to have been approximately 17½ to 20½ inches, with Scriptural references to both a "common" cubit and a "long" cubit.
What is a cubit? Cubit, from the Latin word cubitus, meaning the lower arm, is used to translate the original Biblical Hebrew word pronounced am-mah, which meant the forearm. Based on the length of a man's arm from elbow to finger tips, the cubit is one of the major Biblical Weights and Measures. Although the precise length of the Biblical cubit is unknown today, it's estimated to have been approximately 17½ to 20½ inches, with Scriptural references to both a "common" cubit and a "long" cubit.
This means that the ark would have been 450 feet long, 75 feet wide and 45 feet high if the 18 inch cubit was used. If a larger cubit was used it would have been proportionately longer.
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