Look, the money that we found in the mouths of our sacks we brought back to you from the land of Canaan. Why then would we steal silver or gold from your master’s house?

So Abimelech summoned Isaac and said, “She is really ¹  your wife! Why did you say, ‘She is my sister’?” Isaac replied, “Because I thought someone might kill me to get her.” ² 

There is no one greater in this household than I am. He has withheld nothing from me except you because you are his wife. So how could I do ¹  such a great evil and sin against God?”