Isaiah 59:5

Of such a kind as this, perhaps, is that of which the prophet says, touching the ungodly, "They weave a spider's web." For as in the cobweb there is the appearance of something woven, but no substantiality in the appearance,—for he who touches it touches nothing substantial, as the spider's threads break with the touch of a finger,—just such is the unsubstantial texture of idle phrases. "Not dividing His own essence by begetting and being at once begetter and begotten." Ought we to give his words the name of argument, or to call them rather a swelling of humours secreted by some dropsical inflation? … Who is so distracted, who is so demented, as to make the statement against which Eunomius thinks he is doing battle? For the Church believes that the true Father is truly Father of His own Son, as the Apostle says, not of a Son alien from Him.

(Verse 5, 6.) They conceived labor and gave birth to iniquity: they broke the eggs of vipers and wove spider webs. Whoever eats their eggs will die, and what is hatched will break out into a viper. Their webs will not be turned into clothing, nor will they be covered with their works. LXX: For they bring forth pain and generate iniquity. They broke the eggs of vipers and wove spider webs. And whoever wants to eat their eggs, breaking them open, will find something rotten, and in the end a viper; their webs will not be used for clothing, nor will they be covered with their works. Those who await the coming of the Antichrist cannot say: 'We have conceived and brought forth from fear of you, O Lord, and we have made the spirit of your salvation come upon the earth' (Isaiah 26:18), they conceive pain correctly, and give birth to wickedness, so that they receive iniquity instead of what they seek with much effort; of whom it is written in the Psalms: 'They conceived pain, and brought forth wickedness' (Psalm 7:15). They break and shatter the eggs of asps, so that they may receive their venom in their own minds, of whom it is said in the Gospel: 'You offspring of vipers' (Matthew 3:7). And beautifully they have laid the eggs of asps and serpents, which eggs are said to generate first. And because they not only retain the poisons of malice in their hearts, but also meditate on old wives' fables day and night, they are therefore said: And they weave webs of spiders: by which they catch flies and mosquitoes and small creatures; to which when something happens by chance, it flies through the empty air. […]

Those who bent their knee to drink are those who inclined themselves totally to philosophy: and the same are inclined to an infinite number of errors, and that is how the leaven of error is warmed. They warm the eggs of asps, so that what …

"They will hatch adders' eggs." Also the children, whom they have generated, are evil and want to be even more harmful than their parents. "And they have woven a spider's web." As the threads woven by the spider catch the flies, so their schemes catch …

1040. Second, he applies a certain metaphor to this. And first, he sets out the metaphor itself as to their cunning, both as to their oppression of others: eggs of asps, that is, counsels full of poison, they have broken, namely, bringing their works in …