Wife of the fifth Lubavitcher Rebbe, Rabbi Sholom DovBer Schneerson, and mother of the sixth Rebbe, Rabbi Yosef Yitzchak, Rebbetzin Shterna Sarah (1860-1942) lived through the upheavals of the first half of the 20th century. She fled the advancing front of World War I from Lubavitch to Rostov, where her husband passed away in 1920 at age 59. In 1927, she witnessed the arrest of her son by Stalin's henchmen the night he was taken away and sentenced to death, G-d forbid, for his efforts to keep Judaism alive throughout the Soviet empire. After Rabbi Yosef Yitzchak's release, the family resettled in Latvia and later, Poland; in 1940, they survived the bombing of Warsaw, were rescued from Nazi-occupied city, and emigrated to the United States. Rebbetzin Shterna Sarah passed away in New York on the 13th of Shevat of 1942.
On January 27, 1945, the Russian army arrived in Auschwitz, the most infamous of the Nazi death camps, and liberated some 7,000 survivors—those left behind as unfit to join the evacuation "Death March."
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 there was something wrong, it needed to be changed. Even if it had been decreed by the will of G‑d.