Unity
When we want to accomplish something on a large scale, we band together with other people who share our vision. The same thing applies to believers. There are to be no lone rangers in the Christian faith. God designed us to be part of a community. Each Christian possesses gifts that compliment the gifts of other believers. We are far more effective in worship, ministry and godly living when we combine our gifts for the single purpose of glorifying God. When Christians work against one another, defeat is almost guaranteed. The amazing truth is that when we put our faith in Jesus  Christ, we are united with God because his Spirit (see Holy Spirit) comes to live in us. The apostle Paul used marriage (see Marriage) to illustrate  this concept: Christians are united with God, just as husbands and wives are united in marriage.

We are to strive for unity with other believers.
John 17:20-23
Romans 15:5-6
1 Corinthians 1:10
Ephesians 4:1-6
Husbands and wives are united with one another.
Genesis 2:21-24
Ephesians 5:25-32
Christians are united with God, and our actions should reflect that union.
Romans 6:4-5
1 Corinthians 6:12-20
Ephesians 4:1-6