Introduction to Evangelical Lutheran Worship states:
In the principal service of Christian worship, the Holy Spirit gathers people around the means of grace—the saving Word of God and the sacraments. From the table of communion where Jesus Christ comes with forgiveness, life, and salvation, God sends us out to share the good news and to care for those in need.
The basic pattern of this service—gathering, word, meal, sending—is a structure that allows for freedom and flexibility in the ways worship may be shaped locally, while focusing on what the church holds in common. The whole people of God are joined by the same gifts of grace, for the sake of the same mission of the gospel, into the life of the one Triune God.