Fulfil ye my joy, that ye be likeminded, having the same love, being of one accord, of one mind.
Philippians 2:2
Now I beseech you, brethren, by the name of our Lord Jesus Christ, that ye all speak the same thing, and that there be no divisions among you; but that ye be perfectly joined together in the same mind and in the same judgment.
1 Corinthians 1:10
that they may be one, as we are.
John 17:11 ,21-23
There is one body, and one Spirit, even as ye are called in one hope of your calling; One Lord, one faith, one baptism, One God and Father of all, who is above all, and through all, and in you all.
Ephesians 4:3-6