When the men there asked him about his wife, he told them, “She's my sister,” because he was afraid. He said to himself, “If I say she's my wife, the men here will kill me to get Rebekah, because she's so beautiful.”
So Potiphar left Joseph to care for everything he owned. He didn't bother with anything except to decide what food he was going to eat. Now Joseph was handsome, having a good physique,
Though I was asleep, my mind was racing. I heard my love knocking, and calling out, “Please open the door, my sister, my darling, my dove, my perfect love. My head is soaked with dew, my hair is wet from the night mist.”