Saint John of Damascus,
Barlaam and Ioasaph
“ Hereupon Theudas, bowing an attentive ear to the evil one, and learning from him the secret of his evil and deadly counsel, became himself the devil's tongue and mouthpiece, and spake unto the king, "If thou wilt get the better of thy son, and make his opposition vain, I have discovered a plan, which he shall in no wise be able to resist, but his hard and obdurate mind shall melt quicker than wax before the hottest fire." ”
