“Examine yourselves, to see whether you are in the faith. Test yourselves. Or do you not realize this about yourselves, that Jesus Christ is in you?” – 2 Corinthians 13:5

"...that does not doubt in their hearts but believes..." What an insight into what faith is! Now put that faith in action in prayer in asking, believing and forgiving others as you have been forgiven. Why hold onto a grudge or hurt when you can release it for more of God's work in your life.