John 17:3, 23 (NKJV) And this is eternal life, that they may know You, the only true God, and Jesus Christ whom You have sent. I in them, and You in Me; that they may be made perfect in one, and that the world may know that You have sent Me, and have loved them as You have loved Me.
And this is eternal life, a relationship of unity in Christ. The Whole book of the bible is a story of relationship, this is what the whole book is all about, and more than that, but corely it talks about the broken relationship of mankind and God and how it happened and how it will be fixed by us and God who are fixing it right now.
The Unity of Us is the felloship we all need to built not just with each other but with the Trinity of The Father, The Son, and the Holy Spirit.
By living in that fellowship, we are building back the relationship that was oncw broken and is in the process of repair. To let the World know that the Lord loves them and to make them realize that the human heart requires nothing more other than the love of God. And we can get that from the fellowship
2 Timothy 1:8 Therefore do not be ashamed of the testimony of our Lord, nor of me His prisoner, but share with me in the sufferings for the gospel according to the power of God,
For we are on a mission to spread the good news to all nation so that they may know that Jesus Christ is