They have to do with christianity

Saint Michael is not typically known as a disciple in Christianity. He is an archangel who is recognized as a leader of the heavenly army. In some traditions, he is considered a protector and defender rather than a follower or disciple of Jesus.

All of the apostles and Jesus were Jewish, however, they began Christianity.

Paul was that disciple. Prior to his conversion to being a Christian he was a persecutor of people who believed in Jesus Christ. In those days he was known as Saul of Tsarus.

The term disciple is translated from the New Testament Greek word mathetes which means pupil but the most common interpretation is from the Latin term discipulus which means Learner.