So when God sent me from my father's house into foreign lands, I said to her, ‘You can show how loyal you are to me by telling everyone that I am your brother.’”
So Peter said to her, “Why did you and your husband decide to put the Lord's Spirit to the test? The men who buried your husband are at the door right now, and they will carry you out too!”
It was faith that made Abraham obey when God called him to go out to a country which God had promised to give him. He left his own country without knowing where he was going.