After experiencing close communion with God (Chapter 18) and seeing the destruction of the twin cities (Chapter 19), one would assume that Abraham would definitely be closer to God than ever before. But he was in fact back to his old ways. Moving to a land without God’s leading, we don’t see him building any altars or even praying to God, giving Sarah to be married to the ruler of that land by letting everyone believe they are siblings again and in the end profiting off of the ruler’s guilt, again!