Inspiration: This scripture is helpful for choirs and musicians as many of them get over anxious, making sure every note is in tune and played correctly. This self centeredness makes it hard for people to spontaneously bow their knee to Jesus during worship because they are more concerned what others think than what Jesus thinks. On the other hand, I have been in a service where everyone was humbly and passionately worshipping Jesus when a glory cloud (similar to what is described in the Old Testament) appeared in the church and was seen by all and the cloud stayed for 1.5 hours over the altar. We all knew this was from God as His power was so evident no one wanted to go home. 
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