Hebrews 12:16-17

16Make sure that nobody among you has sex in a wrong way. Be careful that nobody is careless about God's rules, like Esau was long ago. He gave away everything that he would have received as his father's first son. He gave it all away so that he could get only one meal.

17As you know, after that, he still wanted to receive those good things from his father. He wanted his father to ask God to bless him. But his father refused to do that. Esau cried very much when he asked his father to give him those good things. But there was no way that Esau could change what he had done.