Most Christians agree that unity within the church is not only a worthwhile goal, but necessary, In the high priestly prayer of Jesus, shortly before His death, he makes this request of God::
“…. that they (his followers) may all be one in me, just as you, Father, are in me, and I in you, that they may also be in us, so that the world may believe that you have sent me. The glory that you have given me I have given to them, that they may be one even as we are one, I in them and you in me, that they may become perfectly one, so that the world may know that you sent me and loved them even as you loved me.” John 17:21-23
This spiritual unity of believers is described in the Bible with organic analogies, such as the vine and the branches (John 15:5) or the human body (1 Cor. 12:12). It is only possible through the reconciling death of Christ on the cross, and the action of the Holy Spirit. It does not depend upon uniformity (we all have different gifts) or complete agreement with one another, but on love and forgiveness. In Ephesians, Paul says:
“I therefore, a prisoner for the Lord urge you to walk in a manner worthy of the calling to which you have been called, with all humility and gentleness, with patience, bearing with one another in love, eager to maintain the unity of the Spirit in the bond of peace. There is one body and one Spirit–just as you were called to the one hope that belongs to your call–one Lord, one faith, one baptism, one God and Father of all who is over all and through all and in all.” Ephesians 4:1-6
If you look closely, you will see that our unity depends upon the fruit of the Spirit: love, gentleness, patience, and peace. These are gifts. Treasure them, cultivate them, be worthy of them.
For more on unity see these posts: