Brethren, there is another sort of evil satiety and drunkenness which does not result from indulging in food and drink, but from anger and hatred towards our neighbor, remembrance of wrongs, and the evils that spring from these. On this subject Moses says in his song, “Their wine is the wrath of dragons and the incurable wrath of asps” (Deut. 32:33). So the prophet Isaiah says, “Woe to those who are drunken, but not with wine” (Isa. 29:9)
This is the drunkenness of hatred which more than anything else causes God to turn away, and the devil attempts to bring it about in those who pray and fast. He prompts them to remember wrongs, directs their thoughts towards harboring malice, and sharpens their tongues for slander.
He prepares them to be like that man who wishes for evil whom David describes with the words, “He deviseth mischief continually, his tongue is like a sharp razor” (Ps. 51:2 Lxx), and from whom he prays God to deliver him, saying, “Deliver me, O Lord, from the evil man: preserve me from the violent man; they have sharpened their tongues like a serpent; adders’ poison is under their lips” (Ps. 140:1, 3). (St. Gregory Palamas, The Homilies, p. 49 & 50)