John 17:23 (KJV)
I in them, and thou in me, that they may be made perfect in one; and that the world may know that thou hast sent me, and hast loved them, as thou hast loved me.
Jesus is asking for a unity of love between believers. A unity that he shares with his father he wants to share with each believer. The world will see the unity of love between believers and know by this witness that they are Christians.
The only problem is some Christians do not show love for each other. By not showing love for each other and a unity of spirit our Christian witness is dulled in the world. Why should the world want what we have if we cannot love each other? All the world can see is our witness, our action toward each other. If we cannot love and cooperate with each other then the world will not want what we have.
Give me the strength to love each and every Christian that I know. The wisdom to know that through a unity of love we can reach a lost and dying world. Draw me closer to you so I can draw closer to my fellow believers giving us an opportunity to be great witnesses for the gospel.
In Jesus name I pray amen.