Ordination is the sacrament (or Holy Mystery) of holy Orders. The Greek words used for ordination are cheirotonia and cheirothesia, both of which mean “the laying on of hands.” Members of the major orders of the clergy—bishop, priest, and deacon—are ordained during the Divine Liturgy by the bishop, who is usually assisted by several priests. According to Orthodox teaching, the process of ordination begins with the local congregation; but the bishop alone, who acts in the name of the universal Church, can complete the action. The ordination itself for those entering the major orders takes place within the altar.