In Genesis 18 three beings, considered to have been angels appearing as men, came to Abraham in the plains of Mamre. After the angels received the hospitality of Abraham and Sarah, his wife, God revealed to Abraham that he would destroy Sodom and Gomorrah, 'because their sin is very grievous'. In response, Abraham inquired of God if he would spare the city if 50 righteous people were found in it, to which God agreed he would not destroy it for the sake of the righteous yet dwelling therein. Two angels were sent to Sodom to investigate and were met by Abraham's nephew Lot, who convinced the angels to lodge with him, and they ate with Lot.