[Sorry for the gap in posting. Have been overseas.]
All Christian worship is basically our offering of obedience and gratitude to God’s giving in Christ our Lord, foretold in the Old Testament, fulfilled in the New Testament, remembered and received anew in Divine Worship, in sermon and sacraments. That response to the Gospel of God is given by the Body of Christ in prayer and praise and dedication. In stately cathedral or in hillside chapel, in parish church or in meeting-house, in whatever tongue, whether with ceremonial or with only the barest minimum, in set liturgy or in freer forms of worship (or in silence, occasionally broken by the devout meditations of the obedient servants of Christ, as in the case of the Society of Friends), it is the mighty acts of God in the redemption of the world through our Lord Jesus Christ that are represented, and the benefits which are appropriated.
—Horton Davies, Christian Worship, Its Making and Meaning, 101