The Feast of the Exaltation of the Cross, September 14, is found in the calendars of churches East and West. I don't know about the texts for this week in the Western traditions, but I do have access to various texts used during services throughout the week following September 14 in the Orthodox Church, so I thought I would share a few of them in honor of the Cross this week.
A comparison is often made between the tree of paradise which was used by the serpent to deceive man and bring death, and the Tree of Cross through which the serpent, the deceiver, was deceived and death was slain. Thus the refrence to setting a "tree against a tree" and many references to the deceiver. From Vespers for September 16:
Thou didst take the straying sheep, O Christ, on Thy shoulders, and Thou didst bring it unto Thy Father on high through Thy precious, life-creating Cross, to number it with the Angels by Thy Divine and All-Holy Spirit; for, O Savior, Thou didst set a tree against a tree. Now with fervent faith we exalt it, glorifying Thee Who upon it was exalted, mightly exalting us.
Since Thou didst will to ransom all from out of the deceiver's hand, Thou didst suffer smiting, insult, and reproach, and even crucifixion, O only Life-Bestower, long-suffering Friend of man most merciful.
Thy Cross, the spear, the piercing nails, I honor; for by them hast Thou ransomed all men from corruption, since Thou art the only Life-bestower, the whole world's Benefactor, O our good Savior, only Friend of man.
My Savior, Who art more than good, Thou wast nailed to the Cross for me; Thou wast smitten, given vinegar to drink, affronted, O Redeemer, and with a spear wast wounded; and Thou dost bear all things, O Sinless One.
Though I in Paradise had terribly fallen through the manslayer's bitter counsel, O Savior, yet Thou on Calvary didst raise me up of old, healing by Thy Tree that curse of the tree; and Thou slewest the accursed serpent who through beguilement had slain me, and Thou didst grant divine life unto me. To Thy divine Crucifixion be glory, O Lord.
Good things to bear in mind as Christians living in the midst of the world's empty promises. There is only One true Friend of Man. (Translation from the Greek, in The Menaion of Holy Transfiguration Monastery, Boston, Mass.. 2005)