But though he believed the promise made him with a full and abiding faith, he yet desired to know by what merit of theirs his descendants would maintain themselves. Therefore God bade him bring Him a sacrifice of three heifers, three she-goats, three rams, a turtle dove, and a young pigeon, thus indicating to Abraham the various sacrifices that should once be brought in the Temple, to atone for the sins of Israel and further his welfare.[110] "But what will become of my descendants," asked Abraham, "after the Temple is destroyed?" God replied, and said, "If they read the order of sacrifices as they will be set down in the Scriptures, I will account it unto them as though they had offered the sacrifices, and I will forgive all their sins."[111] And God continued and revealed to Abraham the course of Israel's history and the history of the whole world: The heifer of three years indicates the dominion of Babylon, the she-goat of three years stands for the empire of the Greeks, the ram of three years for the Medo-Persian power, the rule of Ishmael is represented by the ram, and Israel is the innocent dove. 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.[112] 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.[112]