17.
Both cosmogonies are theological rather than scientific. The real purpose of the first, in its present form at least, is not so much to explain the creation of the universe as to inculcate a belief in the divine institution of the Sabbath. It belongs to the Priestly code, and one of the chief pillars of priestcraft is the Sabbath.
The second contains no recognition of the Sabbath. The chief purpose of this account of the creation, if we include the third chapter, which is really a continuation of it, is to establish the doctrine of the Fall of Man.