sevens

Of every clean beast thou shalt take to thee by sevens, the male and his female: and of beasts that are not clean by two, the male and his female.

Of fowls also of the air by sevens, the male and the female; to keep seed alive upon the face of all the earth.

Half of it is in extent seven portions, one _half_; and the whole of its orb is void of light, except a seventh portion out of the fourteen portions of its light. And in a day it receives a seventh portion, or half _that portion_, of its light. Its light is by sevens, by one portion, and by the half _of a portion_. It sets with the sun.