When Abraham said, "O Lord, shew me how thou wilt give life to the dead!" He said, "Hast thou not believed?" He said, "Yes; but I have asked thee, that my heart may be well assured." He said, "Take, then, four birds, and draw them towards thee, and cut them in pieces; then place a part of them on every mountain; then call them and they shall come swiftly to thee: and know thou that God is Might, Wise!"