113. David was thinking of this purpose in his breast when he said: “For I will pass into the place of the marvellous tabernacle, even to the house of God, with the voice of exultation and thanksgiving, the sound of one that feasts.” Ps. xlii. [xli.] 4 [LXX.]. For not only are enemies overcome by the sound of these trumpets; but without them there could not be rejoicings, and festivals or new moons. For no one, unless he have received the promises of the Divine Word, and believes the message derived therefrom, can keep festivals or new moons, in which he desires to fill himself, freed from bodily pleasure and secular occupation, with the light of Christ. And sacrifices themselves cannot be pleasing to Christ unless confession of the mouth accompanies them, which according to custom stirs up the people to implore the grace of God at the priestly oblation.