Though the elements of Christian worship are the same as those in the Old Testament, there are two new factors at the very heart of the New Testament that bring about a decisive reorientation. First, Christian worship is through God the Son; second, it is worship in the Holy Spirit.
The resurrection of the crucified Christ is the point on which the weekly and annual cycles of the Christian calendar turn. In fact, it supplies the clue to the whole history of salvation and indeed the cosmos. Every Sunday and every Easter day is a commemoration and celebration of the resurrection of Jesus and an anticipation of the day when the same Lord will come again in glory to judge the living and the dead and finally establish God’s universal kingdom.