“No matter where we’re at on the kind spectrum, we can all grow and progress. Because the kindness Paul is talking about is not just making it a habit of holding a door for someone, thought that is a great way to be kind, but he’s really referring to the character of God, Himself. Romans 2 tells us God is rich in kindness. And when Jesus famously told us that His yoke is easy, it’s the same word that is used for kind, here.
Along with this good, easy, gracious kindness, Paul lumps in compassionate. Linguists explain this is a rare word. Hippocrates, the father of medicine, used this word to describe the healthy function of the intestines. So, kindness and compassion is the normal, healthy behavior of the Body of Christ.“