Forgiveness is Hard

“I have found it is impossible to be unforgiving toward those I am praying for. It's not easy to start praying for them; it's one of the hardest things I've done. But when I make that person an object of prayer, I open the door of my heart a little wider so that God can come in and breathe on my hardened heart, melting the icy resentment that is there.”

https://www.christianitytoday.com/biblestudies/articles/spiritualformation/bitterness-resentment.html?start=2