Parashat Vayera
Genesis 18:22
Avraham, on the third day after his brit mila, sits outside his tent looking for guests to extend his hospitality. While talking with the Almighty, he sees three visitors (actually angels of the Almighty). Avraham interrupts his conversation with the Almighty to invite them to a meal. One angel informs him that in a year's time, Sarah, his wife, will give birth to a son, Yitzhak (Isaac).
God tells Avraham that He is going to destroy Sodom because of its absolute evil (the city is the source of the word sodomy). Avraham argues with God to spare Sodom if there can be found ten righteous people in Sodom. Avraham loses for the lack of a quorum. Lot (Avraham's nephew) escapes the destruction with his two daughters.
Other incidents: Avimelech, King of the Philistines, wants to marry Sarah (Avraham's wife), the birth of Yitzhak, the eviction of Hagar (Avraham's concubine) and Ishmael. Avimelech and Avraham make a treaty at Beersheva. Avraham is commanded to take up his son, Isaac, as an offering 'on one of the mountains' (Akeidat Yitzhak). Lastly, the announcement of the birth of Rivka (Rebecca), the future wife of Yitzhak.
Do you want to know the reward for listening to the command of the Almighty? This is what the Almighty told Avraham: '... I shall surely bless you and greatly increase your descendants like the stars of the heavens and like the sand on the seashore; and your offspring shall inherit the gate of its enemy. And all the nations of the earth shall bless themselves by your offspring, because you have listened to My voice.'