'Leader' in the Bible

Just then, a man named Jairus came. He was a leader of the synagogue. He fell down at Jesus’ feet and pleaded with Him to come to his house,

But when Jesus heard this, he told the synagogue leader, "Stop being afraid! Just believe, and she will get well."

But the leader of the synagogue, indignant because Jesus had healed on the Sabbath, responded by telling the crowd, “There are six days when work should be done; therefore come on those days and be healed and not on the Sabbath day.”

One Sabbath, Jesus went to the house of a leader of the Pharisees to eat a meal. The guests were watching Jesus closely.

But ye shall not be thus; but let the greater among you be as the younger, and the leader as he that serves.