13.  Ye who have been enrolled are become sons and daughters of one Mother.  When ye have come in before the hour of the exorcisms, let each one of you speak things tending to godliness:  and if any of your number be not present, seek for him.  If thou wert called to a banquet, wouldest thou not wait for thy fellow guest?  If thou hadst a brother, wouldest thou not seek thy brother’s good?