John Calvin on Matthew 23:10

10. For one is your Master, even Christ. He repeats a second time the former statement about Christ’s office as Master, in order to inform us that the lawful order is, that God alone rule over us, and possess the power and authority of a Father, and that Christ subject all to his doctrine, and have them as disciples; as it is elsewhere said, that Christ is the only

head of the whole Church, (Ephesians 1:22)

because the whole body ought to be subject to him and obey him.