Abram explains he fears the Egyptians will kill him because of Sarai’s beauty, so he asks her to say she is his sister Genesis 12:11–13. The narrative then reports Sarai was taken into Pharaoh’s house and Abram received gifts Genesis 12:14–16.
In Genesis 12:10–13, a severe famine forces Abram to leave the land and head to Egypt as a temporary resident. As he nears Egypt, Abram anticipates danger because Sarai is visibly attractive. He predicts Egyptians may kill him to take her, while sparing her life. This scene follows Abram’s call and initial movements in Canaan (Genesis 12:1–9), where he travels, builds altars, and lives as a mobile outsider in the land. The famine introduces immediate pressure on that new life and pushes him beyond Canaan’s boundaries.
Genesis 12:10–13 presents a quick chain of pressures: a severe famine in the land, Abram’s move to Egypt as a temporary resident, and then Abram’s fear that entering Egypt creates a new danger. The text explicitly says Abram believes Sarai’s visible beauty will put him at risk: Egyptians will identify her as his wife, kill him, and keep her alive.
A careful answer keeps the immediate passage, the book's argument, and the whole-Bible storyline together, so the question is answered in context instead of as a detached idea.
Start with Genesis 12:11-13, then read the surrounding section so the answer stays connected to the passage's flow.
11It happened, when he was come near to enter into Egypt, that he said to Sarai his wife, "See now, I know that you are a beautiful woman to look on.
12It will happen, when the Egyptians will see you, that they will say, `This is his wife.` They will kill me, but they will save you alive.
13Please say that you are my sister, that it may be well with me for your sake, and that my soul may live because of you."