Live in harmony with one another. Do not be haughty, but associate with the lowly. Never be wise in your own sight.
Romans 12:16
Humility and harmony go hand in hand. The way to obey the first positive command (live in harmony) is to personally follow the second two negative commands (do not think highly of yourself; never be wise in your own sight). Christian care, christian charity, and christian community all work together in a beautiful picture of the gospel.
We get along because it is Christ Who brought us together. We have Jesus in common. He set the example by humbling Himself, stooping from heaven to our need, and giving His life for us. And that is how we should care for one another. He is our peace because He is our Savior, our Lord, our King, and our example. We are called to be daily growing in His likeness. And so we humble ourselves in order to truly care. If we refuse, God may humble us so we learn to stoop down in love like Jesus!
We associate with those in need and defy social positions. We encourage them with the gospel. We welcome them like family into the church. We help them grow, learn of Jesus, serve beside us, minister to us, living equally in the Body of Christ. All people thus find themselves dignified in Jesus by the grace that we all humbly receive from His hand. Humility is the way to harmony. May Christians show this way, live this way, be this way in a contentious and broken culture.