Excerpt from The Life of St. Antony:

The Lord therefore, as God, stayed the mouths of the demons: and it is fitting that we, taught by the saints, should do like them and imitate their courage. For they when they saw these things used to say: "When the sinner rose against me, I was dumb and humble, and kept silence from good words." And again: "But I was as a deaf man and heard not, and as a dumb man who openeth not his mouth, and I became as a man who heareth not.'' So let us neither hear them as being strangers to us, nor give heed to them even through they arouse us to prayer and speak concerning fasting. But let us rather apply ourselves to our resolve of discipline, and let us not be deceived by them who do all things in deceit, even though they threaten death. For they are weak and can do nought but threaten.