He's not really a Turk, but we do sometimes find wisdom (of sorts) from unexpected places. I recently came across the following quotation:
"Wherever applause breaks out in the liturgy because of some human achievement, it is a sure sign that the essence of liturgy has totally disappeared and been replaced by a kind of religious entertainment." (Joseph Ratzinger, Spirit of the Liturgy, p. 198)
Far be it from me to applaud the most prominent living enemy of the Christian faith, but he's right about this issue. When there is applause during what purports to be a worship service, it is because something has gone dreadfully awry. Worship of God (and God alone) is why we are in church on the Lord's Day.
When one begins to admix entertainment into the service, one is losing sight of the focus of worship in two ways. First of all, one is focusing on the performer, rather than on God. Second of all, one is permitting oneself to be honored when the honor should be directed to God.
Worship is edifying and valuable to the worshiper, but it is not about the worshiper. The minister of God and his assistants (whoever they may be) are there to lead you in the worship of God, not to entertain and amuse you.
I am not saying that no joke may ever be told from the pulpit, but when your pastor can rival the local comedy club for the number of laughs and applause per minute from the crowd, something has gone dreadfully wrong.
In general applause is totally inappropriate in worship, as is reverence and honor being paid to anyone besides the Mighty and Jealous God whom you are there to worship. Come, pay homage to God, and hear the proclamation of his Word!
I think I can say without exaggeration that the problem of entertainment in churches is a rival to the problem of feasting instead of communion in the ancient churches. If you want to have a good laugh, go to a comedy club. If you want to hear outstanding musical performances, go to the local concert hall. The point of church is not entertain you - but for you to interact reverentially and solemnly with God.