From Worship Old & New, by Robert E. Webber:
We must always remember that worship has a horizontal as well as a vertical dimension. It is important for us to enact the work of Christ as an offering of praise and thanksgiving to the Father. But is is equally important that we act on what we have enacted ... the pattern of the world is one of injustice, inequality, discrimination, war, hate, immorality and all those human abuses that the New Testament and the early church fathers described as the way of death. The true worship of God inevitably leads the people of God into positive social action. Our calling is to worship God not only with our lips but with our lives.