Genesis 15:13

15:13 Then the Lord said to Abram, “Know for certain that your descendants will be strangers in a foreign country. They will be enslaved and oppressed for four hundred years.

Genesis 18:13

18:13 The Lord said to Abraham, “Why did Sarah laugh and say, ‘Will I really have a child when I am old?’

Genesis 26:9

26:9 So Abimelech summoned Isaac and said, “She is really your wife! Why did you say, ‘She is my sister’?” Isaac replied, “Because I thought someone might kill me to get her.”