Let each one consider within himself what faults he must remedy in himself, what good work he may yet do, what sin he may wipe out from his soul, so that by this he may become better. And if he finds that he has made progress in this excellent market, through fasting, and is aware that there is need for much care for his wounds, then let him draw near. If however he remains neglectful of himself, and has only his fasting to show, and makes no progress in other directions, then let him remain outside, and let him return only when all his sins are cleansed.
Wherefore, do not remember your good deeds, in order that God may remember them. Do thou first confess thy sins, it is written, that thou mayest be justified (Isaiah 43:26).
Thou dost not so much desire thy sins to be forgiven, as He desires to forgive thee thy sins. In proof that thou dost not so desire it, consider that thou hast no mind either to practice vigils, or to give thy money freely: but He, that He might forgive our sins, spared not His Only-Begotten and True Son, the partner of His throne.
When day is done, let us give thanks both for what we have received throughout the day, and for what we have done rightly; and let us make confession of what we have not done, and of every sin, voluntary, or involuntary or even hidden from us, in word or in deed and even in our heart, that we may bring upon us God's mercy for all of them. For to examine ourselves upon what we have done is a great help against falling into the same sins again. The things you say in your hearts, be sorry for them upon your beds (Ps. iv. 5).
Brethren, let us also occupy yourselves with noetic prayer… and seeking God’s mercy, cry out with a humble heart from morning till night and if possible all night long, saying constantly: 'Lord Jesus Christ, Son of God, have mercy on us.'
Watch constantly, learning to understand God's law, for this warms the heart with heavenly fire. Guard your lips from the idle word, or empty talk, lest the heart gets used to evil words.
What does it mean to be as wise as a serpent? When a serpent is attacked, it is willing to have much of its body severed, as long as it saves the head. So to be wise as a serpent means to be willing to lose everything - your wealth, your reputation, your friends - as long as you save your faith. Your faith is your head, by which you learn all truth; and by that truth your soul is set free. We should, however, recognize that the wisdom of the serpent is not enough; we must be honest and innocent as doves. Indeed it is the combination of wisdom and innocence that creates virtue. The person who is wise as a serpent can sustain the most terrible attacks and still continue to flourish as a disciple of Christ. The person who is innocent refuses to retaliate against those who make the attacks. To be as innocent as a dove means never to take revenge on those who wrong you or undermine you. Unless wisdom is tempered by innocence, one attack provokes another, and conflict continues without end. Unless innocence is tempered by wisdom, a person is so vulnerable that he will not even survive a single attack. Rest assured that no one can ever take away your faith; your wisdom guards against that. But be careful never to bear a grudge against anyone who does you wrong.
The dread Mysteries, full of such great salvation, which are celebrated at every Liturgy, are also called a Thanksgiving [Eucharistia] because they are the remembrance of many benefits, and they signify the culmination of God's Providence towards us, and in every way cause us to be thankful to Him.
What profit is there in present delight; here today, tomorrow fled? Today a shining flower; tomorrow scattered dust. Today a bright fire; tomorrow dead ashes. But it is not so with spiritual things. They remain ever shining, ever flowering, each day a greater joy. These riches are never lost, never given up, never come to an end, never cause anxiety nor envy nor blame. They neither destroy the body nor corrupt the soul, nor awaken jealousy, nor provoke malice; as with earthly riches. This glory does not lead a man to senseless folly; does not inflame him, does not come to an end, does not fade. The rest and the delight of heaven remains, it goes on, ever unchanging and immortal. For it has no limit; it has no end. Let us, I beseech you, long for this life. For if we long for this life, we shall place no value on the things of the present time.
A wise elder gives the following advice to monks and youth alike: 'Avoid eating foods which are to your liking, but, preferably, eat the simplest foods, and be thankful to God, Who also sends you these.'
Abba Poemen also said this about Abba Isidore that whenever he addressed the brothers in church he said only one thing, 'Forgive your brother, so that you also may be forgiven.'
Concerning fasting, do not grieve, as I have said to you before: God does not demand of anyone labors beyond his strength. And indeed, what is fasting if not a punishment of the body in order to humble a healthy body and make it infirm for passions, according to the word of the Apostle: 'When I am weak, then am I strong' (II Corinthians 12:10).
Let us then not lose heart, nor be slothful or timid in prayer. Even if we have been brought down to the depths of evil, prayer can speedily draw us back.
He, in whose heart humility and meekness are reborn, will find true rest for his soul. He will be satisfied with everything, grateful for everything, peaceful and full of love for everybody. He will judge none and will feel no anger. His heart will be filled with divine sweetness, that is, he will feel in himself the Kingdom of God because God grants His grace only to the humble.