I wanted to give you a few follow-up articles and video to look through after this week's sermon. Take some time to read through the sermons/articles and watch the short video. I think you'll be encouraged more in your approach to worship.
Sermons by John Piper
Ambushing Satan with Song
The Curse of Careless Worship
Prepare to Meet Your God
Singing and Making Melody to the Lord
I'll post more as I come across it.