In Genesis 20 we find Abraham and Sarah on the move after the destruction of Sodom, traveling very near Egypt to the town of Gerar. Abraham fears being in danger due to his wife Sarah, and does the same thing he did 25 years prior when in Egypt, calling Sarah his “sister” rather than “wife.” We have to ask ourselves, “What is going on here?” And we know part of the answer: there are certain old sins to which each of us are uniquely susceptible—“sin which clings so closely” (Hebrews 12:1). We each have our unique susceptibilities Abraham was God’s friend, a man who had to learn to trust God alone. God was working to that end, but part of the lesson for Abraham was that old habits are hard to break. God would have to break Abraham in this chapter, so that he could make maximum use of him in the days ahead.