“If worship does not change us, it has not been worship. To stand before the Holy One of  eternity is to change. In worship, an increased power steals its way into the heart sanctuary; an increased compassion grows into the soul. To worship is to change. If worship does not propel us into greater obedience, it has not been worship. Just as worship begins in holy expectancy, it ends in holy obedience. Holy obedience saves worship from becoming an opiate, an escape from the pressing needs of modern life. Worship enables us to hear the call to service clearly so that we respond, ‘Here I am! Send me!’ (Isa 6:8)'”

Richard J. Foster, Celebration of Discipline