To Know Thee

‘After this the Priest says, Holy things to holy men. Holy are the gifts presented, having received the visitation of the Holy Ghost; holy are you also, having been deemed worthy of the Holy Ghost; the holy things therefore correspond to the holy persons. Then ye say, One is Holy, One is the Lord, Jesus Christ.  For One is truly holy, by nature holy; we too are holy, but not by nature, only by participation, and discipline, and prayer.
 
After this ye hear the chanter inviting you with a sacred melody to the communion of the Holy Mysteries, and saying, O taste and see that the Lord is good. Trust not the judgment to your bodily palate no, but to faith unfaltering; for they who taste are bidden to taste, not bread and wine, but the anti-typical Body and Blood of Christ.
 
In approaching therefore, come not with your wrists extended, or your fingers spread; but make your left hand a throne for the right, as for that which is to receive a King. And having hollowed your palm, receive the Body of Christ, saying over it, Amen. So then after having carefully hallowed your eyes by the touch of the Holy Body, partake of it; giving heed lest you lose any portion thereof; for whatever you lose, is evidently a loss to you as it were from one of your own members. For tell me, if any one gave you grains of gold, would you not hold them with all carefulness, being on your guard against losing any of them, and suffering loss? Will you not then much more carefully keep watch, that not a crumb fall from you of what is more precious than gold and precious stones?
 
Then after you have partaken of the Body of Christ, draw near also to the Cup of His Blood; not stretching forth your hands, but bending , and saying with an air of worship and reverence, Amen, hallow yourself by partaking also of the Blood of Christ. And while the moisture is still upon your lips, touch it with your hands, and hallow your eyes and brow and the other organs of sense. Then wait for the prayer, and give thanks unto God, who has accounted you worthy of so great mysteries.
 
Hold fast these traditions undefiled and, keep yourselves free from offence. Sever not yourselves from the Communion; deprive not yourselves, through the pollution of sins, of these Holy and Spiritual Mysteries. And the God of peace sanctify you wholly; and may your spirit, and soul, and body be preserved entire without blame at the coming of our Lord Jesus Christ (1 Thessalonians 5:23): To whom be glory and honour and might, with the Father and the Holy Spirit, now and ever, and world without end. Amen’.

On the Sacred Liturgy and Communion from Catechetical Lecture 23
by St Cyril of Jerusalem, c.313-386

Grant, we beseech thee, Almighty God: that at the intercession of thy blessed Bishop Saint Cyril, we may learn to know thee, the only true God, and Jesus Christ, whom thou hast sent; that we may be found worthy to be numbered for ever among the sheep that hear his voice; through the same Jesus Christ thy Son our Lord, who liveth and reigneth with thee, in the unity of the Holy Ghost, ever one God, world without end. Amen. - Divine Worship: The Missal.