Jamieson, Fausset and Brown on Mark 1:26

26. And when the unclean spirit had torn him--Luke (Lu 4:35) says, "When he had thrown him in the midst." Malignant cruelty--just showing what he would have done, if permitted to go farther: it was a last fling!

and cried with a loud voice--the voice of enforced submission and despair.

he came out of him--Luke (Lu 4:35) adds, "and hurt him not." Thus impotent were the malignity and rage of the impure spirit when under the restraint of "the Stronger than the strong one armed" (Lu 11:21, 22).