Praying the Great Canon...

Have mercy on me, O God, have mercy on me. 

Where shall I begin to weep for the actions of my wretched life? What first-fruit shall I offer, O Christ, in this my lamentation? But in Thy compassion grant me forgiveness of sins. 

Have mercy on me, O God, have mercy on me. 

Come, wretched soul, with thy flesh to the Creator of all. Make confession to Him, and abstain henceforth from thy past brutishness; and offer to God tears of repentance. 

Have mercy on me, O God, have mercy on me. 

I have rivaled in transgression Adam the first-formed man, and I have found myself stripped naked of God, of the eternal Kingdom and its joy, because of my sins. 

Have mercy on me, O God, have mercy on me. 

Woe to thee, miserable soul! How like thou art to the first Eve! 
For thou hast looked in wickedness and was grievously wounded; thou hast touched the tree and rashly tasted the deceptive food. 

Have mercy on me, O God, have mercy on me. 

Instead of the visible Eve, I have the Eve of the mind: the passionate thought in my flesh, showing me what seems sweet; yet whenever I taste from it, I find it bitter. 

Have mercy on me, O God, have mercy on me. 

Adam was justly banished from Eden because he disobeyed one commandment of Thine, O Savior. What then shall I suffer, for I am always rejecting Thy words of life? 

Have mercy on me, O God, have mercy on me. 

By my own free choice have I incurred the guilt of Cain’s murder. I have killed my conscience, bringing the flesh to life and making war upon the soul by my wicked actions. 

Have mercy on me, O God, have mercy on me. 

O Jesus, I have not been like Abel in his righteousness. Never have I offered Thee acceptable gifts or godly actions, a pure sacrifice or an unblemished life. 

Have mercy on me, O God, have mercy on me. 

Like Cain, O miserable soul, we too have offered, to the Creator of all, defiled actions and a polluted sacrifice and a worthless life: and so we also are condemned. 

Have mercy on me, O God, have mercy on me. 

As the potter molds the clay, Thou hast fashioned me, giving me flesh and bones, breath and life. But accept me in repentance, O my Maker and Deliverer and Judge. 

Have mercy on me, O God, have mercy on me. 

I confess to Thee, O Savior, the sins I have committed, the wounds of my soul and body, which murderous thoughts, like thieves, have inflicted inwardly upon me. 

Have mercy on me, O God, have mercy on me. 

Though I have sinned, O Savior, yet I know that Thou art full of loving-kindness. Thou dost chastise with mercy and art fervent in compassion. Thou dost see me weeping and dost run to meet me, like the Father calling back the Prodigal Son. 

Have mercy on me, O God, have mercy on me. 

I lie as an outcast before Thy gate, O Savior. In my old age cast me not down empty into hell; but, before the end comes, in Thy love grant me remission of sins. 

Have mercy on me, O God, have mercy on me.

(See more at:)
Источник: http://www.pravoslavie.ru/english/69650.htm