Psalms 133:1

1 Behold, how good and how pleasant it is For brethren to dwell together in unity!
2 It is like the precious oil upon the head, Running down on the beard, The beard of Aaron, Running down on the edge of his garments.
3 It is like the dew of Hermon, Descending upon the mountains of Zion; For there the Lord commanded the blessing— Life forevermore.

John 17:20-22

20 “I do not pray for these alone, but also for those who will believe in Me through their word;
21 that they all may be one, as You, Father, are in Me, and I in You; that they also may be one in Us, that the world may believe that You sent Me.
22 And the glory which You gave Me I have given them, that they may be one just as We are one:

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UNITY, IS PLEASANT AND IMPORTANT:
1. Identifies us as people of God.
2. Proves to the world that God sent His Son.
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Ephesians 4:1-6

I, therefore, the prisoner of the Lord, beseech you to walk worthy of the calling with which you were called, 2 with all lowliness and gentleness, with longsuffering, bearing with one another in love, 3 endeavoring to keep the unity of the Spirit in the bond of peace.
4 There is one body and one Spirit, just as you were called in one hope of your calling; 5 one Lord, one faith, one baptism; 6 one God and Father of all, who is above all, and through all, and in you all.