Ephesians 4:1-6 (NIV)
1As a prisoner for the Lord, then, I urge you to live a life worthy of the calling you have received.
2Be completely humble and gentle; be patient, bearing with one another in love.
3Make every effort to keep the unity of the Spirit through the bond of peace.
4There is one body and one Spirit–just as you were called to one hope when you were called–
5one Lord, one faith, one baptism;
6one God and Father of all, who is over all and through all and in all.
1 Corinthians 1:10 (NIV)
10I appeal to you, brothers, in the name of our Lord Jesus Christ, that all of you agree with one another so that there may be no divisions among you and that you may be perfectly united in mind and thought.
Philippians 2:2 (NIV)
2then make my joy complete by being like-minded, having the same love, being one in spirit and purpose.