Psalm 133 (AMP)
Behold, how good and how pleasant it is For brothers to dwell together in unity!
2 It is like the precious oil [of consecration] poured on the head, Coming down on the beard,
Even the beard of Aaron, Coming down upon the edge of his [priestly] robes [consecrating the whole body].
3 It is like the dew of [Mount] Hermon Coming down on the hills of Zion;
For there the LORD has commanded the blessing: life forevermore.
David was a man after Gods own heart and in this psalm he talks about the importance of unity. From his own life we see this exemplified in the strong bond and relationship he shared with Jonathan, To be a man after Gods own heart you must be a man who loves unity.
Ephesians 2:13-14 (AMP)
13 But now [at this very moment] in Christ Jesus you who once were [so very] far away [from God] have been brought near [a]by the blood of Christ. 14 For He Himself is our peace and our bond of unity. He who made both groups—[Jews and Gentiles]—into one body and broke down the barrier, the dividing wall [of spiritual antagonism between us],
Christ died so as to reconcile us to God and also that we may be united because in His death and resurrection we have become one body in Him. How can a body function unless it is united? You cannot be a man after Gods own heart if you are not a man who pursues unity with other believers. We have all been united in Christ. The bible says there is no Jew or gentile, male or female because we are one in Christ.
Romans 16:17 (CEV)
17 My friends, I beg you to watch out for anyone who causes trouble and divides the church by refusing to do what all of you were taught. Stay away from them!
Unity is such a big thing in the body of Christ that Paul tells us to stay away from those who cause trouble and divide the church. Where there is unity God himself commands a blessing.
A man after Gods heart is a man who loves people, he is a man who understands the importance of unity and oneness in the body of Christ, he is not an individualistic kind of person who is proud and self seeking but rather he is one who considers others as better than himself.
1 Corinthians 1:10 (AMP)
10 But I urge you, believers, by the name of our Lord Jesus Christ, that all of you be in full agreement in what you say, and that there be no divisions or factions among you, but that you be perfectly united in your way of thinking and in your judgment [about matters of the faith].