And suffered not the devils to speak. — St. Luke (Luke 4:41) gives the reason of the prohibition more distinctly. The demoniacs had cried out, “Thou art the Son of God.” They knew that He was the Christ.
Related Commentaries of Mark 1:34
Mark 1:34
34 And he healed many that were sick of divers diseases, and cast out many devils; and suffered not the devils to speak,c because they knew him.