'Dumb' in the Bible

and they were being beyond measure astonished, saying, 'Well hath he done all things; both the deaf he doth make to hear, and the dumb to speak.'

and one out of the multitude answering said, 'Teacher, I brought my son unto thee, having a dumb spirit;

Jesus having seen that a multitude doth run together, rebuked the unclean spirit, saying to it, 'Spirit -- dumb and deaf -- I charge thee, come forth out of him, and no more thou mayest enter into him;'