Service Of Worship
Vocal music is traditionally sung by a choir or the congregation (or a mixture of the two), usually accompanied by an organ. Sometimes other instruments such as piano, classical instruments.
Church Services Today
Today a wide variety of church services exist, from the long and elaborate services of Eastern Christianity to the very basic Evangelical sermon.
The Law Of God.
God is either the sole deity in monotheism or the monist deity in polytheism. God is most often conceived of as the supernatural creator and overseer of the universe.