Mark 1:34

34 and He healed many who were sick with various diseases and drove out many demons. But He would not permit the demons to speak, because they knew Him.

Mark 1:34 Meaning and Commentary

Mark 1:34

And he healed many that were sick of divers diseases
Not that there were some, who had some sorts of diseases, whom he did not heal; but he healed all that came, or were brought to him, which were many, of every sort of disease, which were divers, with which they were afflicted:

and cast many devils;
even as many as were brought to him, or were possessed with any:

and he suffered not the devils to speak;
either for him, or against him; which shows his great power over them:

because they knew him,
or "that they knew him": he would not suffer them to say a word about him, because he knew that they knew that he was the Christ, the Son of God, or he would not permit them to say who he was; because he had others to bear witness of him, and better testimonies than theirs, and lest his enemies should reproach him with an agreement and familiarity with them.

Mark 1:34 In-Context

32 When evening came, after the sun had set, they began bringing to Him all those who were sick and those who were demon-possessed.
33 The whole town was assembled at the door,
34 and He healed many who were sick with various diseases and drove out many demons. But He would not permit the demons to speak, because they knew Him.
35 Very early in the morning, while it was still dark, He got up, went out, and made His way to a deserted place. And He was praying there.
36 Simon and his companions went searching for Him.
Holman Christian Standard Bible ® Copyright © 2003, 2002, 2000, 1999 by Holman Bible Publishers.  Used by permission.  All rights reserved.