This passage addresses Abraham and Abimelech, with a second occurrence of Abraham’s fear that a king will kill him in order to take Sarah. A second time, God protected Abraham. Abraham is a model of honesty about dependence, a stranger and sojourner on the earth. But he still lives in a corrupt human nature subject to fear. This passage is a reminder of how God sets limits on evil and harm done; God controls conception; and God does not deal with us according to our iniquities, though there are consequences for what we do in a material world.