Through some bible studies, we are doing God is showing us again His big mercy and that He listen to sinners. When God punished Cain for the murder of Abel, Cain said to God that the punishment was too severe and that the people would want to kill him. So God gave Cain a mark so that the people would not kill Cain. When Abraham ask God to spare Sodom and Gomorrah each time Abraham came up with a number of righteous people that He will spare the city for, God said yes. BUT Abraham stopped at 10. Abraham thought that was the end of God's mercy. If he would have go on asking God for only 4 people, maybe God would even have spared it just for Lot and his family. We cannot deplete the mercy of God.