If you have kids, then this will be (I dare say) a powerful analogy, though if you don't have kids of your own, you can't fully appreciate the following words.
What would your child have to do to make you write them off?
How far would your son or daughter have to run before you said, "you know what, forget it, you're just not worth it anymore - I'm done with you!"
What would that little boy or little girl (which they all are to the parents, no matter how old they get) have to do to make you stop caring, stop loving, and stop chasing them?
How far would you have to run after them before you decided it was just to far to go to reach them?
And who is a better parent.... you or God? (Luke 11:11-13)
So, if all that you just rationalized in your own mind is true, how far would you have to run in order for God to stop chasing you? (Romans 8:38-39)