John 17:20-26 – The Need for and Importance of Unity

“My prayer is not for them alone. I pray also for those who will believe in me through their message, that all of them may be one, Father, just as you are in me, and I am in you. May they also be in us so that the world may believe that you have sent me. I have given them the glory that you gave me, that they may be one as we are one—I in them and you in me—so that they may be brought to complete unity. Then the world will know that you sent me and have loved them even as you have loved me.

“Father, I want those you have given me to be with me where I am, and to see my glory, the glory you have given me because you loved me before the creation of the world.

“Righteous Father, though the world does not know you, I know you, and they know that you have sent me. I have made you known to them and will continue to make you known in order that the love you have for me may be in them and that I myself may be in them.” (New International Version)

What is the Church’s identity?

What is the Church all about?

Why is the Church important?

The Church’s Identity

The Church is made up of people who have been reconciled to God through Christ’s sacrificial death on the cross and brought to new life in the Spirit. This special relationship that believers and Jesus enjoy with their God is a covenant relationship, and, so, the Church is a covenant community – receiving the blessings first promised to Abraham in the Old Testament that all nations would be blessed by grace through faith. 

God mercifully acts on the Church’s behalf through choosing, adopting, and redeeming people. This new covenant community receives the promises of God and exists to follow Jesus Christ in all things. 

So then, the Church is not a voluntary society, like other human institutions. Rather, it is divinely called by God. The Church is the community of the redeemed whom God has joined through the Spirit to Christ. Therefore, an individual, theologically speaking, does not join a church; instead, God joins the Church to Jesus.

The Nicene Creed

This ancient ecumenical creed describes the Church with four identifying marks:

  1. The Church is one. The unity of the Church comes from being in fellowship with God through Jesus in the Spirit – expressed through the bond of love and a common worship which includes the spiritually forming practices of preaching, liturgy, and sacraments. Since believers serve a triune God of Father, Son, and Spirit who exists in unity, so Christians are to work toward maintaining their unity through the bond of peace.
  2. The Church is holy. The Church is holy by virtue of Christ’s finished work. Therefore, the members of the Church are saints, called by God to live in holiness and participate with him in carrying out his purposes on earth. As God is holy, so believers are to be holy in all they do. Since Christians are holy through God’s justification in Christ, so the Church as saints must uphold justice in the world.
  3. The Church is catholic. This means that God’s people are found in all parts of the world throughout all times in history, including every race, class, gender, and ethnicity. Since the Church includes all kinds of people from different cultures, these believers must work together. The Church, across all kinds of denominations, ought to minister together to the total life of all people through gospel proclamation and good works done in the Spirit.
  4. The Church is apostolic. Apostolic means “to be sent.” The Church is not only a people who are gathered for worship and teaching; they are also sent into the world as salt and light to those who remain in darkness. Where the Church goes, the rule and reign of Jesus goes with them so that good news is spread to all nations.

The Church’s Mission

  1. The Church is called to love God.  The Church is the temple of the Holy Spirit, and the house where God dwells. The Church exists to glorify God and enjoy him forever. Christians are to develop intimacy with Jesus through the Spirit.
  2. The Church is called to love one another. The Church is the Body of Christ and is to be a haven for saints. The Church exists for community and is the place where believers are strengthened in faith through the proclamation of the Word in preaching and sacrament.
  3. The Church is called to love its neighbors. The Church is the people of God, being a hospital for sinners. The Church exists to serve the kingdom of God so that God’s benevolent and gracious rule might extend to all creation.

These three dimensions define the Church as being a “missional” community of redeemed persons who are concerned and focused on making disciples of Jesus Christ. The forward direction of the Church is to come ever closer to Christ through faith, be strengthened in that faith together through the Word of God, confidently stepping into the world to engage it with the love and grace of God so that others may come to faith in Jesus Christ.

The Church’s Importance

  1. The Church is a Trinitarian community, birthed as a free expression of God’s love through Word and Spirit. As people created in the image and likeness of God and redeemed for his purposes, believers reflect the image of the triune God.  The Church was important enough for Christ to die for.
  2. What the Church “does” flows from its identity as a redeemed community, being the people of God. So, then, the Church’s mission is not so much about establishing evangelistic programs so much as it is to listen to the Spirit of God and live in the power of the Spirit as it rubs shoulders with unbelievers.
  3. Just as the Father sent the Son, and the Son sent the Spirit, so the Church is sent into the world armed with the grace and love of God as if believers were ambassadors for Christ in a ministry of reconciliation.
  4. God has moved in a “downwardly mobile” way to bring reconciliation to all of creation. God has gathered the Church on earth to be sent as witnesses of Christ’s person and work through humility, meekness, and gentleness so that God’s mercy and peace might become realities in this world.

Therefore, the Church is to glorify the triune God by embracing its missional identity and mandate by making disciples of Jesus Christ through worship, community, and outreach. The Church is to aim its love toward God, one another, and neighbor through Jesus Christ in the power of the Spirit.

The Belhar Confession

This Reformed Confession of faith directly addresses the need for and importance of Christian unity, which was of great significance to Jesus in his high priestly prayer.

We believe in one holy, universal Christian church, the communion of saints called from the entire human family.

We believe that Christ’s work of reconciliation is made manifest in the church as the community of believers who have been reconciled with God and with one another.

We believe that this unity of the people of God must be manifested and be active in a variety of ways:

That we love one another;

That we experience, practice, and pursue community with one another; that we are obligated to give ourselves willingly and joyfully to be of benefit and blessing to one another;

That we share one faith, have one calling, are of one mind; have one God and Father, are filled with one Spirit, are baptized with one baptism, eat of one bread and drink of one cup, confess one name, are obedient to one Lord, work for one cause, and share one hope.

That together we come to know the height and the breadth and the depth of the love of Christ;

Together are built up to the stature of Christ, to the new humanity;

Together know and bear one another’s burdens, thereby fulfilling the law of Christ that we need one another and upbuild one another, admonishing and comforting one another;

That we suffer with one another for the sake of righteousness; pray together; together serve God in this world; and together fight against all which may threaten or hinder this unity.

Amen.