I will make sure you and your children, and the woman and her children, are enemies. One of her children will crush your head, and you will strike his heel.”
Your father is the devil, and you love to follow your father's evil desires. He was a murderer from the beginning. He never stood for the truth, because there is no truth in him. When he lies he reveals his true character, for he's a liar and the father of lies.
“You are full of deception and all kinds of evil, you son of the devil, you enemy of all that is right! Will you never give up perverting the Lord's true ways?
So by these two actions that can't be changed, and since it's impossible for God to lie, we can have total confidence, having run for safety to take hold of the hope God presented to us.
Those who sin are of the devil, for the devil has been sinning from the beginning. That's the reason why the Son of God came—to destroy what the devil has done.