Mark 3:24

If a kingdom be divided against itself, that kingdom cannot stand.

John 17:21

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

1 Corinthians 1:10-13

Now I exhort you, brethren, by the name of our Lord Jesus Christ, that ye all speak the same thing, and that there be no schisms among you, but that ye be perfectly joined together, in the same mind and in the same judgment.

Ephesians 4:3-6

forbearing one another in love, Endeavouring to keep the unity of the Spirit, by 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 all may be one; as thou, Father, art in me, and I in thee, that they also may be one in us, that the world may believe that thou hast sent me.
1 Corinthians 1:10
Now I exhort you, brethren, by the name of our Lord Jesus Christ, that ye all speak the same thing, and that there be no schisms among you, but that ye be perfectly joined together, in the same mind and in the same judgment.
Ephesians 4:3
forbearing one another in love, Endeavouring to keep the unity of the Spirit, by the bond of peace.