Exodus 25:10

10“They shall make an ark of acacia wood two and a half 25:10 Ancient measurements like the cubit were intended to be practical in that they usually were equivalent to something that was handy and readily available. The cubit was the distance from the elbow to the outstretched fingers, and the hand width (v 25)—as its name implies—was the width of the four fingers.cubits long, one and a half cubits wide, and one and a half cubits high.