Psalm 133:1-3 (NLT)
How wonderful and pleasant it is when brothers live together in harmony! 2 For harmony is as precious as the anointing oil that was poured over Aaron’s head, that ran down his beard and onto the border of his robe. 3 Harmony is as refreshing as the dew from Mount Hermon that falls on the mountains of Zion. And there the Lord has pronounced his blessing, even life everlasting. 

Ephesians 4:1-3 (NLT)
Therefore I, a prisoner for serving the Lord, beg you to lead a life worthy of your calling, for you have been called by God. 2 Always be humble and gentle. Be patient with each other, making allowance for each other’s faults because of your love. 3 Make every effort to keep yourselves united in the Spirit, binding yourselves together with peace. 

1 Corinthians 12:25 (NLT)
This makes for harmony among the members, so that all the members care for each other. 

1 Corinthians 3:1-3 (NLT)
Dear brothers and sisters, when I was with you I couldn’t talk to you as I would to spiritual people. I had to talk as though you belonged to this world or as though you were infants in Christ. 2 I had to feed you with milk, not with solid food, because you weren’t ready for anything stronger. And you still aren’t ready, 3 for you are still controlled by your sinful nature. You are jealous of one another and quarrel with each other. Doesn’t that prove you are controlled by your sinful nature? Aren’t you living like people of the world? 

James 3:16 (NLT)
For wherever there is jealousy and selfish ambition, there you will find disorder and evil of every kind. 

Romans 16:17 (NLT)
And now I make one more appeal, my dear brothers and sisters. Watch out for people who cause divisions and upset people’s faith by teaching things contrary to what you have been taught. Stay away from them. 

Mark 10:9 (NLT)
let no one split apart what God has joined together.” 

Ephesians 2:19-22 (NLT)
So now you Gentiles are no longer strangers and foreigners. You are citizens along with all of God’s holy people. You are members of God’s family. 20 Together, we are his house, built on the foundation of the apostles and the prophets. And the cornerstone is Christ Jesus himself. 21 We are carefully joined together in him, becoming a holy temple for the Lord. 22 Through him you Gentiles are also being made part of this dwelling where God lives by his Spirit. 

Colossians 2:19 (NLT)
and they are not connected to Christ, the head of the body. For he holds the whole body together with its joints and ligaments, and it grows as God nourishes it. 

Ephesians 4:1-3 (NLT)
Therefore I, a prisoner for serving the Lord, beg you to lead a life worthy of your calling, for you have been called by God. 2 Always be humble and gentle. Be patient with each other, making allowance for each other’s faults because of your love. 3 Make every effort to keep yourselves united in the Spirit, binding yourselves together with peace.

2 Timothy 2:2 (NLT)
You have heard me teach things that have been confirmed by many reliable witnesses. Now teach these truths to other trustworthy people who will be able to pass them on to others. 

Ephesians 5:31 (NLT)
As the Scriptures say, “A man leaves his father and mother and is joined to his wife, and the two are united into one.” 

1 Corinthians 6:15-17 (NLT)
Don’t you realize that your bodies are actually parts of Christ? Should a man take his body, which is part of Christ, and join it to a prostitute? Never! 16 And don’t you realize that if a man joins himself to a prostitute, he becomes one body with her? For the Scriptures say, “The two are united into one.” 17 But the person who is joined to the Lord is one spirit with him.