How often do we commune with those that we do not feel deserve our fellowship? How often do we esteem others lower than ourselves only to set up idols of our own person? How often do slander, injure, and assault the very body of Christ; even in his name?
When one has been united to the Lord Jesus Christ through justification he should seek reconciliation with fellow believers out of duty. We, who are the Church, are united to Christ and, in a sense, united with each other. The Apostle Paul was clear on this when he spoke of the many members. Does the hand say to the foot, I have no need of you?
Seek peace with the household of God. Seek unity of mind and heart. It has been said that through division and hatred, many Sabbath worship services have had Christians murdering other Christians through their mutual thoughts and feelings. Seek peace. Seek unity. Seek communion of the saints as an outworking of union with Christ.
See how fearful a sin it is to abuse the saints. It is an injury done to Christ, for believers are mystically one with him: "Saul, Saul, why do you persecute me?" (Acts 9:4). When the body was wounded, the Head, being in heaven, cried out. In this sense, men crucify Christ afresh (Heb. 6:6), because what is done to his members is done to him. If Gideon was avenged upon those who slew his brethren, will not Christ much more be avenged on those that wrong his spouse (Judges 8:21)? Will a king tolerate having his treasure rifled, his crown thrown in the dust, his queen beheaded? Will Christ bear with the affronts and injuries done to his bride? The saints are the apple of Christ's eye (Zech. 2:8), and let those who strike at his eye answer for it. Isa 49:26 "I will feed those who oppress you with their own flesh, and they shall be drunk with their own blood as with sweet wine" (Isa. 49:26). -Thomas Watson