in being by rotary motion, possesses a pleasurable harmony which is sweet and unceasing. 15 But let us ascribe the obedience of natural objects to the dominion of the Creator, who bids His creatures obey Him by that very power with which He brought them into existence.
I. Alleluia. We are reminded to keep this term in constant use, for we are aware that it is fittingly appended to both New and Old Testaments. It is set before the Old at Psalm 104, in which the miracles in Egypt and the blessings at the Red Sea are described; here we are taught that it prefaces a new canticle, in which lies the total consummation of the whole of religion. It is accordingly placed everywhere, for we realise that it must be uttered on every occasion. It is a term to be revered with great devotion; the angels sing it, and on earth the prayers of the faithful often incorporate it.
In earlier psalms the prophet recommends praises to the Lord in countless admonitions. Here too he says first that a new song must be sung in various ways to the Lord Christ, for by His devotion He has built the universal Jerusalem from the whole population of the world. Secondly, he describes the joys and powers of the saints, and says that the punishment of sinners is the glory of the just.
Sing ye to the Lord a new canticle: let his praise be in the church of the saints. In this and the three ensuing verses the Lord's greatness is praised with reference to His works, for in the words: Sing ye to the Lord a new canticle: let his praise be in the church of the saints, he is saying that the Lord is to be proclaimed because of His works. The prophet was set in this world in body only, and in thought and faith he