Genesis 26:7-9 records the account of Isaac’s sin – sin of lying and deception, just as his father Abraham had done so to Pharaoh (Genesis 12) and Abimelech (the title given to), the king of Gerar (Genesis 20) where he dwelt. Isaac did not learn from his father’s mistake. His father Abraham has made the mistake and lied about Sarah being his sister for fear of his life and that was an example of something that Isaac should have not followed. Instead, to the men of Gerar, Isaac made the same mistake and lied that his wife Rebekah was his sister, for he feared that they would kill him and take her away. The fact that Isaac was a relative of Rebekah, does not still discount the fact that he lied about his marital relationship with Rebekah. But when Isaac is discovered and caught red-handed by the king himself, he confesses that he was afraid for his life.

Points to ponder:
Though this account in no way provides any substance to the doctrine of generational curse, we must recognize that children tend to follow the example of their parents, even when their action is clearly wrong. It is therefore imperative that we live our lives as god-fearing men and women and that our children learn the ways of the Lord God from us. We can learn from God our Father how we ought to live and be, and from us, our children can benefit to be godly as well. This way, no one can tell of us or our children that we are not learning from the Father.

Genesis 26:7-9 (KJV)
7 And the men of the place asked him of his wife; and he said, She is my sister: for he feared to say, She is my wife; lest, said he, the men of the place should kill me for Rebekah; because she was fair to look upon.
8 And it came to pass, when he had been there a long time, that Abimelech king of the Philistines looked out at a window, and saw, and, behold, Isaac was sporting with Rebekah his wife.
9 And Abimelech called Isaac, and said, Behold, of a surety she is thy wife; and how saidst thou, She is my sister? And Isaac said unto him, Because I said, Lest I die for her.