Hindrance to Excellent Corporate Worship

D.A. Carson, in Worship by the Book (p. 58):

Hindrances to excellent corporate worship are of various sorts.... [C]orporate worship may be stultified by church members who never pray at home, who come to church waiting to be entertained, who are inwardly marking a scorecard instead of participating in worship, who love mere tradition (or mere innovation!) more than truth, who are so busy that their minds are cluttered with the press of the urgent, who are nurturing secret bitterness and resentments in the dark recesses of their minds.