Choir rehearsal comes at the end of what, for most of us, has been a long day. Some have had a tough day at work. Some have had to get kids to school and back home, get them fed and otherwise taken care of. Most have had errands to run, obligations and responsibilities to meet. It would not seem unreasonable to expect the choir room on Wednesday evening to be a place of relatively low energy.
Instead, what an observer would see is a group of people enjoying fellowship, laughing often, and singing with enthusiasm. (It is, after all, difficult not to feel a burst of energy when joining in a brisk rendition of "Marching to Zion"). I think the energy level of choir members may be higher at the end of rehearsal than at the beginning. Perhaps this recharging of batteries results from the fellowship and the singing. Perhaps some of it also comes from another source of energy: “For where two or three come together in my name, there am I with them”.

