Those who have truly decided to serve the Lord God should practice
the remembrance of God and uninterrupted prayer to Jesus Christ,
mentally saying: Lord Jesus Christ, Son of God, have mercy on me,
Be attentive to the thoughts of the mind. If some evil thought passes through you, do not get upset, for it is not the transient thoughts of your mind that the knowledge of the Lord of all observes, rather He looks at the depths of the mind to see if you take pleasure in that evil thought which resides there; for hateful thoughts float over the surface of the mind, but it is the senses that are lower down which can chase away hateful thoughts, which the Lord of all examines. He does not judge what just passes over the mind, but rather the thoughts that are lower down than those hateful ones, namely those which appear in the depths of the mind, which can drive them away with its hidden hand. For He does not pardon the thoughts which spring up from the depth of the mind, for it is they which should be chasing away those which pass over the surface of the mind; He judges those thoughts which have a passage into the heart.
A brother came to see Avva Macarius the Egyptian, and said to him, "Abba, give me a word, that I may be saved." So the old man said, "Go to the cemetery and abuse the dead." The brother went there, abused them and threw stones at them; then he returned and told the old man about it.
The latter said to him, "Didn't they say anything to you?" He replied, "No." The old man said, "Go back tomorrow and praise them." So the brother went away and praised them, calling them, "Apostles, saints, and righteous men." He returned to the old man and said to him, "Did they not answer you?" The brother said, "No."
The old man said to him, "You know how you insulted them and they did not reply, and how you praised them and they did not speak; so you too, if you wish to be saved, must do the same and become a dead man. Like the dead, take no account of either the scorn of men or their praises, and you can be saved."