LANE: Bible class has been moved an hour later, all to accommodate the reverend’s handball schedule.
In America, handball is a sport where players use their hands to hit a small rubber ball against a wall; it is sometimes called wallball. The idea is to hit the wall with the ball in such a way that your opponent is unable to do the same without hitting the ground twice, or hitting it out of bounds. The game is played on a small court, similar to a squash court. It is possible that the high school gym is used for handball in Stars Hollow.
The first historical record of someone hitting a ball against a wall with their hand is from Scotland in 1427, when King James I was a keen player. The game in America may go back to the American Revolution, but the earliest mention of the modern game is from San Francisco in 1873.
In the next season, we discover the Seventh Day Adventist pastor is named Reverend Melmim, although in real life, Seventh Day Adventist pastors aren’t actually addressed as “Reverend”.
It seems that even though Lane is grounded so badly she isn’t allowed to leave home, even to attend school, she is allowed to go to Bible class with her mother (and presumably, church). Later in the episode, we discover Bible class is on Saturday morning.
As Mrs Kim told Stars Hollow High that Lane had an infectious disease and was too sick to go to school, letting her out to attend Bible class seems like something the school would get to hear about.