The Exhortations in the Communion Office announcing a future celebration are called "Warnings," and are intended to be a sufficient notification to the Communicants so that they may make their preparation for the receiving of the Communion. Where there are frequent celebrations, as on every Sunday and Holy Day, "the rubric does not seem to enjoin their constant use, but to require this form of exhortation to be used at those times when the Minister thinks it necessary to 'give warning,' that is, to exhort his people, respecting the celebration of the Holy Communion. The tone of the rubric and of the exhortations is plainly fitted to a time of infrequent Communion."