The Lord’s Supper (or Eucharist) is the sign and seal of our communion with the crucified and risen Lord.
The Lord’s Supper enacts and seals what the Word proclaims: God’s sustaining grace offered to all people. The Lord’s Supper is at once God’s gift of grace, God’s means of grace, and God’s call to respond to that grace. Through the Lord’s Supper, Jesus Christ nourishes us in righteousness, faithfulness, and discipleship. Through the Lord’s Supper, the Holy Spirit renews the Church in its identity and sends the Church to mission in the world. When we gather at the Lord’s Supper the Spirit draws us into Christ’s presence and unites with the Church in every time and place. We join with all the faithful in heaven and on earth in offering thanksgiving to the triune God. We reaffirm the promises of our baptism and recommit ourselves to love and serve God, one another, and our neighbors in the world.
(From the Book of Order of the Presbyterian Church [USA] W.30409).