Last time, the focus was on the fact that Scripture contains lots of pre-written prayers (like the Psalms), and that Christ tells us to pray the “Our Father” (or “Lord's Prayer”) in Matthew 6:9. But in the Office of Readings for yesterday, I read a great explanation of why we're called to pray memorized prayers: it's so that the Body of Christ can pray as one. St. Cyprian, writing on the Lord's Prayer in 252 A.D., makes this point:
This is a great point. One of the major errors that many modern Protestants fall into is envisioning salvation as atomistic: there's simply “me and Jesus,” a King without a Kingdom. This view pits the idea of a “personal relationship” with Christ against full participation in the Body of Christ, the Church. Christ warns against this impulse explicitly in John 17:20-23, calling His future followers to total and indivisible Oneness. But as St. Cyprian notes, the Lord's Prayer itself implicitly calls us to the same thing, to pray as One Body. This is the same theme that St. Paul treats in 1 Corinthians 12:12-31 (see especially 1 Cor. 12:12-13, 1 Cor. 12:20, and 1 Cor. 12:27).
Before all things, the Teacher of peace and the Master of unity would not have prayer to be made singly and individually, as for one who prays to pray for himself alone. For we say not “My Father, which art in heaven,” nor “Give me this day my daily bread;” nor does each one ask that only his own debt should be forgiven him; nor does he request for himself alone that he may not be led into temptation, and delivered from evil. Our prayer is public and common; and when we pray, we pray not for one, but for the whole people, because we the whole people are one. The God of peace and the Teacher of concord, who taught unity, willed that one should thus pray for all, even as He Himself bore us all in one.
St. Cyprian of Carthage
But if we're all to pray (a) together, and (b) as one, we need to be praying the same thing. If each of us simultaneously bursts out into whatever is on our mind or heart, we end up with cacophony. Don't get me wrong: there's a place for offering our own personal intentions, and bringing them before the Church. But as Cyprian notes, there's also a place for the Church to pray altogether, and for all. And for that reason, this, the Lord's Prayer, is the ideal prayer that Jesus left us. But as Cyprian notes, this is hardly the only time in Scripture that we see united prayer:
From a Protestant perspective, there's only one problem with that Scriptural support... it's from Daniel 3:51, which Protestants don't think is Scriptural (it's the opening line of the Song of the Three Holy Children, which Protestants removed from their Bibles). As an aside, it's telling that back in 252, Cyprian could refer to that verse simply as “sacred Scripture,” and quote it with the expectation that his readers would know which part of Scripture he referred to. It's further proof that the early Church didn't use the Protestant Bible.
This law of prayer the three children observed when they were shut up in the fiery furnace, speaking together in prayer, and being of one heart in the agreement of the spirit; and this the faith of the sacred Scripture assures us, and in telling us how such as these prayed, gives an example which we ought to follow in our prayers, in order that we may be such as they were: “Then these three,” it says, “as if from one mouth sang an hymn, and blessed the Lord.”
Cappadocian Icon of the Archangel Michael
Protecting the Three in the Furnace (13th c.)
Of course, even if one doubts the canonicity of Daniel 3:51, it certainly establishes an ancient Judeo-Christian view that we should pray as one. This passage also points to another way that we do that: hymns. Which explains why the Bible contains 150 of them in the Psalms.
This brings me around to the last point: even those who criticize pre-written and memorized prayer typically worship God with pre-written and memorized songs and Psalmody. I've yet to hear anyone object to the great Protestant hymns on the basis that they're written down. In fact, that's consider a feature, since it means that the hymn can be sung by the whole congregation. But it's wholly inconsistent to object to the one while praising the other.