Mark 3:24

And if a kingdom may be divided against itself, that kingdom is not able to stand,

John 17:21

that they may all be one, as thou, Father, art in me, and I in thee, that they also may be in us; that the world may believe that thou didst send me.

1 Corinthians 1:10-13

But I exhort you, brethren, through the name of our Lord Jesus Christ, that you may all speak the same things, and that there may be no schisms among you; but you may be perfected in the same mind and in the same disposition.

Ephesians 4:3-6

endeavoring to keep the unity of the Spirit in the bond of peace.

Treasury of Scripture Knowledge

Summary

And if a kingdom be divided against itself, that kingdom cannot stand.

Bible References

General references

John 17:21
that they may all be one, as thou, Father, art in me, and I in thee, that they also may be in us; that the world may believe that thou didst send me.
1 Corinthians 1:10
But I exhort you, brethren, through the name of our Lord Jesus Christ, that you may all speak the same things, and that there may be no schisms among you; but you may be perfected in the same mind and in the same disposition.
Ephesians 4:3
endeavoring to keep the unity of the Spirit in the bond of peace.