I am not saying that music that is contemporary is evil. However, using rock music in a church service cannot be glorifying to God.
One, I don't know your definition of rock music. Hard rock, soft rock, country rock, or all rock? What makes it rock? A guitar, drums, bass?
Two (and more importantly), it's a bit interesting that you can emphatically state which music can and cannot be glorifying to God in a church service. My guess, based on Scriptures, is that it is a heart issue not a beat issue.
All Rock is my definition of rock. The style that it is played makes it rock. Musical instruments do not make a song rock but the style in which the instruments are played makes it rock. A string bass (slap bass or upright bass) can be used to play classical, bluegrass, country, hymns, jazz, etc. The instruments are not what matters...it is the style in which they are played. So get over the preconceived idea that everyone else has in stereo-typing me in thinking that I am against the instruments.