Noah was a tzadik, a very great man. He saved the entire world. But he didn't approach Abraham's greatness. When G‑d told Noah to build an ark before the world would be destroyed, Noah built an ark. But when G‑d told Abraham He was about to destroy the cities of Sodom and Gomorrah—cities corrupt and evil to the core—Abraham argued. He said, “Perhaps there are righteous people there! Will the Judge of All the Earth not do justice?” Where Noah donned a warm coat for himself and his family, Abraham built a warm fire for the entire world. Because Abraham felt a sense of ownership for the world in which he lived. If...