How great an injury hast thou done to me in concealing this from me, that she was thy wife! How knew Pharaoh this? Answ.
1. He guessed it from the quality of his plague, which also awakened his conscience.
2. Upon a serious inquiry into the cause of this plague, he understood it either by Divine instinct, as Genesis 20:3, or by Sarai's confession, whom doubtless he severely examined about it. And she, being awakened by this warning, durst no longer conceal herself, and thought she might securely make herself known.