Worship isn’t listening to a sermon, appreciating the harmony of the choir, and joining in singing hymns! It isn’t even prayer, for prayer can be the selfish expression of an unbroken spirit. Worship goes deeper. Since God is spirit, we fellowship with him with our spirit; that is, the immortal and invisible part of us meets with God, who is immortal and invisible.
Erwin W. Lutzer (1941- )