Rabbi Jacob bar Aha said in the name of Rav Assi that Abraham asked God whether God would wipe out Abraham's descendants as God had destroyed the generation of the Flood. Rabbi Jacob bar Aha said in the name of Rav Assi that Abraham's question in , "O Lord God, how shall I know that I shall inherit it?" was part of a larger dialogue. Abraham asked God if Abraham's descendants should sin before God, would God do to them as God did to the generation of the Flood (in ) and the generation of the Dispersion (in Genesis in ). God told Abraham that God would not. Abraham then asked God (as reported in ), "Let me know how I shall inherit it." God answered by instructing Abraham (as reported in ), "Take Me a heifer of three years old, and a she-goat of three years old" (which Abraham was to sacrifice to God). Abraham acknowledged to God that this means of atonement through sacrifice would hold good while a sacrificial shrine remained in being, but Abraham pressed God what would become of his descendants when the Temple would no longer exist. God replied that God had already long ago provided for Abraham's descendants in the Torah the order of the sacrifices, and whenever they read it, God would deem it as if they had offered them before God, and God would grant them pardon for all their iniquities. Rabbi Jacob bar Aha said in the name of Rav Assi that this demonstrated that were it not for the "Ma'amadot", groups of lay Israelites who participated in worship as representatives of the public, then heaven and earth could not endure.