"Hear O earth: behold I will bring evil upon this people, even the fruit of their thoughts, because they have not hearkened to my words, nor to my law, but rejected it" (Jeremiah 6:19).
Brethren, do you see where evil grows and where it ripens? Not in the bosom of God, but in the thoughts of men. Evil is sown in the thoughts of men by demonic powers or from the passions of the flesh. Evil grows in the thoughts of men and spreads and multiplies itself, blossoms and bears leaves and finally shows fruit.
In due time, God warns men to break from their evil thoughts so that evil would not ripen in the souls of men and bring forth its bitter and deadly fruit. In due time, God warned Cain but he did not want to heed the warning and permitted evil thoughts against his brother to being forth evil fruit; fracticide.
What are the thoughts of evil? All those thoughts that are contrary to the law of God; the word of God. Evil thoughts are the self-willed law of man which man prescribes for himself against God and contrary to the law of God.
Therefore, if a man has resolutely decided to adhere to the law of God, evil thoughts are then as weak as shadows which quickly appear but, in the same way, quickly disappear. Then, a man is lord over his thoughts for he feels God as the Lord over himself. Then the law is the law of God and the evil thoughts of men, are nothing.
"Behold, I will bring evil upon this people," said the Lord. What kind of evil? "The fruit of their thoughts." That is: I will permit them only to reap that which they sowed and nurtured, for evil is neither My seed nor My harvest. The evil which I will permit upon lawless men is the fruit of their own thoughts. According to their thoughts, they should have estimated what kind of evil will befall them as a sower estimates, according to his seeds, what he will harvest.
O Lord meek and guileless, save us from our own evil which we alone, have nurtured in ourselves. We pray to You, remove the evil fruit of evil crops, and help us to pluck out the evil seed from our souls.