Third—The Sacrifice of the Mass is, in fine, a sacrifice of supplication: “For, if the blood of goats and of oxen, and the ashes of a heifer being sprinkled, sanctify such as are defiled to the cleansing of the flesh, how much more shall the blood of Christ, who, through the Holy Ghost, offered himself without spot to God, cleanse our conscience from dead works to serve the living God?”(405) If the prayers of Moses and David and the Patriarchs were so powerful in behalf of God’s servants, what must be the influence of Jesus’ intercession? If the wounds of the Martyrs plead so eloquently for us, how much more eloquent is the blood of Jesus shed daily upon our altars? His blood cries louder for mercy than the blood of Abel cried for vengeance. If God inclines His ear to us miserable sinners, how can He resist the pleadings in our behalf of the “Lamb of God who taketh away the sins of the world.” “Let us go, therefore, with confidence to the throne of grace, that we may obtain mercy and find grace in seasonable aid.”(406) Chapter XXIV. THE USE OF RELIGIOUS CEREMONIES DICTATED BY RIGHT REASON. By religious ceremonies we mean certain expressive signs and actions which the Church has ordained for the worthy celebration of the Divine service. True devotion must be interior and come from the heart, for “the true adorers shall adore the Father in spirit and in truth. For the Father indeed seeketh such to worship Him. God is a spirit; and they who worship Him must worship Him in spirit and in truth.”(407) But we are not to infer from this that exterior worship is to be contemned because interior worship is prescribed as essential. On the contrary, the rites and ceremonies enjoined in the worship of God and the administration of the Sacraments are dictated by right reason, are sanctioned by Almighty God in the Old Law, and by Christ and His Apostles in the New. The angels, being pure spirits without a body, render to God a purely spiritual worship. The sun, moon and stars of the firmament pay Him a kind of external homage. In the Prophet Daniel we read: “Sun and moon bless the Lord, ... stars of heaven bless the Lord, praise and exalt Him above all forever.”(408) “The heavens show forth the glory of God, the firmament announces the work of His hands.”(409) Man, by possessing a soul of spiritual substance, partakes of the nature of angels, and by possessing a body partakes of the nature of the heavenly bodies. It is therefore, his privilege, as well as his duty, to offer to God the twofold homage of body and soul; in other words, to honor Him by internal and external worship.