We look at the story of Joseph's family coming to him for food in Genesis 42-46. We see that holding a grudge is a burden we aren't meant to carry, but we are called to be people who never stop forgiving.

"When you are plowing a field you fix your eyes on one point ahead of you to help you keep your line straight. But if you start to look back your line starts to drift. We are called to be people with our eyes fixed on the father, and holding a grudge requires looking back."