If your worship team includes a Choir you may or may not want to include them in the house mix. If the choir is loud enough in the house of worship without amplification, you don't need to mike the choir unless you want to pick them up for recording or broadcast. Most manufacturers offer models designed specifically for choir micing. They are almost invisible, sound natural, and are available in black and white finishes. Use one microphone in the center of every 20 to 30 foot span. A choir of 30 to 45 voices should need only two or three mics. The fewer the mics, the better the gain before feedback. If the choir mics are used for sound reinforcement, place them close to the choir to minimize feedback: about 1.5 feet in front of the front row of singers, and about 1.5 feet above the head height of the back row. This placement tends to pick up all the rows of the choir about equally. Monitor feedback into choir mics is a serious problem because choir mics are far from their sound source. Try to keep the monitor level as low as possible.
Some general tips on microphone usage to reduce the likelihood of feedback.
Use as few microphones as possible. Each time you double the number of open microphones, the gain before feedback drops by 3 dB.
Turn down microphones not in use. This reduces the number of open mics, which prevents feedback and increases clarity. An automatic mixer (gated mixer) is a helpful tool here: it attenuates unused mics automatically.
Keep loudspeakers and microphones as far apart as is practical.
Keep microphones close to their sound sources - as close as possible, but no closer than necessary to achieve adequate volume before feedback occurs. Have the sound-system operator educate users to stay close to their microphones.
Use directional mics like cardioid, supercardioid or hypercardioid.
In conclusion, houses of worship require a wide range of mic choices and placements. Each sound source has special miking needs. But with some attention to those details, your application will provide a clear, natural sound that enhances the worship experience.
Experiencing Worship, The Study
Used by churches all over the world to help teach worship, the Experiencing Worship study can help your worship team too.
Your team will learn why we worship and gain a better understanding of how to worship.
One user said..."Your 5 week study course has made a tremendous impact on my life in the study of worship... I would like to express my thanks for a well written study course that leads into a higher realm of praise and worship."
Experiencing Worship, The Study 
