When you intend to do something and see that your thought is perturbed, and if after invoking God's Name it remains perturbed even by a hair's breadth, know from this that the action you mean to commit is from the evil one and refrain from commiting it. For nothing done with perturbation is pleasing to God.
If a messenger brings an imperial or princely document to a subject citizen, the citizen does not examine the life of the bearer, whether he is rich or poor, righteous or sinful, but listens carefully to what he reads. If anyone has not heard him, he asks someone who has. So, if you have such enormous respect for an earthly ruler, how necessary it is to listen to us priests, here where the Creator of the heavenly powers speaks through us sinners.
Each one, in undertaking any task, should have this purpose in mind: to serve the need of others, not his own ends. In this way he will escape the charge of self-love, and will receive a blessing for his fraternal love from the Lord Who said: As long as you did it to one of these my least brethren, you did it to me (Mt. 25:40).
Fasting needn't be limited to abstinence from food alone, because true fasting is departure from evil deeds. Forgive your neighbor any insult, abstain from causing your neighbor offence, abstain from irritation, from senseless sorrows, from fear, wrath, and so on. ‘True fasting is alienation from evil, temperance of the tongue, setting aside of wrath, casting out of lust, idle talk, lies, and oath-breaking’…This is a true and pleasing fast for the Lord. Departing from these vices and from a corrupt state is what comprises a true fast.
When you are generous to another person, you are not bestowing a gift, but repaying a debt. Everything you possess materially comes from God, who created all things. And every spiritual and moral virtue you possess is through divine grace. Thus you owe everything to God. More than that, God has given you his Son, to show you how to live: how to use your material possessions, and how to grow in moral and spiritual virtue. We may say that your material and spiritual possession cost God nothing; God created the universe in order to express His glory. But the gift of his Son was supremely costly, because His Son suffered and died for our sakes. The agony of Christ on the cross is the measure of how much God loves us. For this reason we should take none of our gifts-- material or spiritual --for granted; day by day we should give thanks to God for what He has bestowed on us. Once this spirit of gratitude infuses us, we shall see generosity for what it is. When we help someone in need, we shall be saved from any temptation to take pride in our actions. On the contrary, we will regard our act as no more than a small token of appreciation for all that we have received - or, more precisely, the repayment of a tiny fraction of God's blessings.
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).
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.'
The night was not made to be spent entirely in sleep. Why did Jesus Christ pass so many nights amid the mountains, if not to instruct us by His example? It is during the night that all the plants respire, and it is then also that the soul of man is more penetrated with the dews falling from Heaven; and everything that has been scorched and burned during the day by the sun's fierce heat is refreshed and renewed during the night; and the tears we shed at night extinguish the fires of passion and quieten our guilty desires. Night heals the wounds of our soul and calms our griefs.
Monasticism itself is a perpetual labor of conquering passions and uprooting them in order that, being in a pure and immaculate state, one may preserve oneself before the face of God. This, then, is your task! Give your attention to it, and direct all your powers towards it.
St. John Climacus was asked if there are reliable signs by which it's possible to know whether a soul is drawing near to God or moving away from Him. After all, regarding ordinary things there are clear signs as to whether they're good or not. When, for instance, cabbage, meat or fish begins to rot, it's easy to notice it, since the rotting object begins to give off a foul odor, the color and taste change, and its external appearance witnesses to its deterioration. Well, and what about the soul? After all, it's bodiless and can't give off a bad smell or change its appearance. To this question the Holy Father replies, 'A sure sign of the deadening of the soul is the avoidance of church services.'
For nothing can so make a man an imitator of Christ as caring for his neighbors. Indeed, even though you fast, or sleep on hard ground, or even suffer unto death, but should take no thought for your neighbor, you have done nothing great; despite what you have done, you will still stand far from this model of a perfect Christian.
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).
He that wears the purple, laying aside his pomp, stands begging of the saints to be his patrons with God; and he that wears the diadem begs the Tent-maker and the Fisherman as patrons, even though they be dead.