The account of the Flood is made up out of two discrepant originals, marked by the names Elohim and Jehovah; of which one makes Noah take into the ark _seven_ pairs of clean, and _single_ (or double ?) pairs of unclean, beasts; while the other gives him two and two of all kinds, without distinguishing the clean.

The two documents may indeed in this narrative be almost re-discovered by mechanical separation.

The triple statement of Abraham and Isaac passing off a wife for a sister was next in interest; and here also the two which concern Abraham are contrasted as Jehovistic and Elohistic.

A similar double account is given of the origin of circumcision, of the names Isaac, Israel, Bethel, Beersheba.

Still more was I struck by the positive declaration in Exodus (vi.