Abraham took him these animals and divided them in the midst. Had he not done so, Israel would not have been able to resist the power of the four kingdoms. But the birds he divided not, to indicate that Israel will remain whole. And the birds of prey came down upon the carcasses, and Abraham drove them away. Thus was announced the advent of the Messiah, who will cut the heathen in pieces, but Abraham bade Messiah wait until the time appointed unto him. And as the Messianic time was made known unto Abraham, so also the time of the resurrection of the dead. When he laid the halves of the pieces over against each other, the animals became alive again, as the bird flew over them.