'Small' in the Bible

Egypt will be the lowliest of kingdoms and will never again exalt itself over the nations. I will make them so small they cannot rule over the nations.

The distance from the gutter on the ground to the lower ledge is 3½ feet, and the width of the ledge is 21 inches. There are seven feet from the small ledge to the large ledge, whose width is also 21 inches.