Orthodox and Catholic clergy claim that from the first days of its inception, the church recognized the seven most important Christian "sacraments" - baptism, communion, anointing, repentance, wedding, unction and priesthood. Believers also think so. And what do scientists who have studied numerous historical documents think about this? What do worshipers think of those who have spent many years of their lives serving God and then left the church fold? The author will tell about this.