Prayer of St. Mary of Egypt to the Theotokos

O Virgin, Mother of God, who didst give birth to God the Word, I know that it is neither fitting nor seemly that one so defiled and so covered with guilt as I should look up to thy image, O ever Virgin. It is fitting that I should be hated and shunned by thy purity. Yet as He who was born of thee became man on purpose to call sinners to repentance, help me, for I have no other succour. Let me also find an entrance. Do not refuse me a sight of the wood on which God the Word, thy Son, suffered according to the flesh, who shed His own precious blood for me. Grant, O Queen, that I may be admitted to worship the sacred Cross, and I will promise thee as surety to the God whom thou didst bring forth that I will keep myself ever undefiled, When I see the Cross of thy Son, I will at once renounce the world and the things of the world, and forthwith follow wherever thou shalt lead.”

St. Sophronius of Jerusalem
The Life of St. Mary of Egypt

Unwritten traditions are handed down in the Church

How do we know the Holy place of Calvary, or the Holy Sepulchre? Does it not rest on a tradition handed down from father to son? It is written that our Lord was crucified on Calvary, and buried in a tomb, which Joseph hewed out of the rock; (Mt. 27.60) but it is unwritten tradition which identifies these spots, and does more things of the same kind. Whence come the three immersions at baptism, praying with face turned towards the east, and the tradition of the mysteries?* Hence St Paul says, “Therefore, brethren, stand fast, and hold the traditions which you have learned either by word, or by our epistle.” (II Thess. 2.15) As, then, so much has been handed down in the Church, and is observed down to the present day, why disparage images?

St. John Damascene
Apology Against Those Who Decry Holy Images
Part I

Ascetic struggle aids in prayer

In the first place, it is the affliction of the flesh—a victim able to appease the Lord by means of the sacrifice of humiliation—in making a libation to the Lord of sordid raiment, together with scantiness of food, content with simple diet and the pure drink of water in conjoining fasts to all this; in inuring herself to sackcloth and ashes.  This bodily patience adds a grace to our prayers for good, a strength to our prayers against evil; this opens the ears of Christ our God, dissipates severity, elicits clemency.

…That which springs from a virtue of the mind is perfected in the flesh; and, finally, by the patience of the flesh, does battle under persecution.

Tertullian 
On Patience
Chapter XIII

Perpetua prays for her deceased brother

“After a few days, whilst we were all praying, on a sudden, in the middle of our prayer, there came to me a word, and I named Dinocrates; and I was amazed that that name had never come into my mind until then, and I was grieved as I remembered his misfortune. And I felt myself immediately to be worthy, and to be called on to ask on his behalf. And for him I began earnestly to make supplication, and to cry with groaning to the Lord.

…This Dinocrates had been my brother after the flesh, seven years of age who died miserably with disease—his face being so eaten out with cancer, that his death caused repugnance to all men.  For him I had made my prayer, and between him and me there was a large interval, so that neither of us could approach to the other.

…But I trusted that my prayer would bring help to his suffering; and I prayed for him every day until we passed over into the prison of the camp, for we were to fight in the camp-show. Then was the birth-day of Geta Cæsar, and I made my prayer for my brother day and night, groaning and weeping that he might be granted to me.

…Then I understood that he was translated from the place of punishment.

 

The Passion of the Holy Martyrs Perpetua and Felicitas
Chapter II

Communion with the Lord through the martyrs

And we therefore, what we have heard and handled, declare also to you, brethren and little children, that as well you who were concerned in these matters may be reminded of them again to the glory of the Lord, as that you who know them by report may have communion with the blessed martyrs, and through them with the Lord Jesus Christ, to whom be glory and honour, for ever and ever.

The Passion of the Holy Martyrs Perpetua and Felicitas 
Preface

The Eucharist as a sacrifice

We are the true adorers and the true priests, who, praying in spirit, sacrifice, in spirit, prayer,—a victim proper and acceptable to God, which assuredly He has required, which He has looked forward to for Himself! This victim, devoted from the whole heart, fed on faith, tended by truth, entire in innocence, pure in chastity, garlanded with love, we ought to escort with the pomp of good works, amid psalms and hymns, unto God’s altar, to obtain for us all things from God.

Tertullian
On Prayer
Chapter XXVIII

Traditions regarding the hours of prayer

Touching the time, however, the extrinsic observance of certain hours will not be unprofitable—those common hours, I mean, which mark the intervals of the day—the third, the sixth, the ninth—which we may find in the Scriptures to have been more solemn than the rest.

… so that—what we read to have been observed by Daniel also, in accordance (of course) with Israel’s discipline—we pray at least not less than thrice in the day, debtors as we are to Three—Father, Son, and Holy Spirit: of course, in addition to our regular prayers which are due, without any admonition, on the entrance of light and of night. But, withal, it becomes believers not to take food, and not to go to the bath, before interposing a prayer; for the refreshments and nourishments of the spirit are to be held prior to those of the flesh, and things heavenly prior to things earthly.

Tertullian
On Prayer
Chapter XXV

Traditions regarding kneeling

In the matter of kneeling also prayer is subject to diversity of observance, through the act of some few who abstain from kneeling on the Sabbath; and since this dissension is particularly on its trial before the churches, the Lord will give His grace that the dissentients may either yield, or else indulge their opinion without offense to others. We, however (just as we have received), only on the day of the Lord’s Resurrection ought to guard not only against kneeling, but every posture and office of solicitude; deferring even our businesses lest we give any place to the devil.

At fasts, moreover, and Stations, no prayer should be made without kneeling, and the remaining customary marks of humility; for (then) we are not only praying, but deprecating, and making satisfaction to God our Lord. Touching times of prayer nothing at all has been prescribed, except clearly “to pray at every time and every place.”

Tertullian
On Prayer
Chapter XXII