"He who caused us to live, taught us also to pray, with that kindness evidently by which He deigns to give and confer on us every other blessing; that when we speak to the Father in the prayer and supplication which his Son taught, we might the more readily be heard. He had already foretold, that the hour was coming when the true worshippers should worship the Father in spirit and in truth; and He fulfilled what He before promised, that we, who have received the spirit and truth from his sanctification, may from his instruction offer adoration truly and spiritually. For what prayer can be more spiritual than that which is given to us by Christ, by whom even the Holy Spirit is sent to us? What can be a more true prayer with the Father than that which came from the lips of the Son, who is Truth? So that to pray otherwise than He taught, is not only ignorance, but a fault; since He has himself laid it down and said, Ye reject the Commandment of God to establish your own traditions. Let us pray then, most beloved brethren, as our teacher, God, has instructed us. It is a welcome and friendly prayer to petition God from his own, to mount up to his ears by the prayer of Christ. Let the Father recognize the words of his Son. When we offer a prayer let Him who dwelleth inwardly in our breast, Himself be in our voice; and since we have Him as our advocate with the Father for our sins, when as sinners we are petitioning for our sins let us put forth the words of our Advocate." [De Orat. Dom. p. 204.]