If there is any phrase that does not describe the world we live in—or our own natural, response to offenses—“slow to anger” is it. Left by ourselves, every minor slight is more offensive than it truly is. We get mad fast and our anger lingers. When someone upsets us, we want an apology, and we want it yesterday. Forgiveness and being “slow to anger” are closely related. The truth is, we would have less to forgive if we weren’t so quick to get irritated. Anger clouds our thoughts and makes us believe that things are true even when they aren’t. And that leads to a convicting thought: The quickest to anger are often the slowest to forgive!

https://www.crossway.org/articles/the-quickest-to-anger-are-often-the-slowest-to-forgive/