Mark 3:12

And He straitly charged them that they should not make Him known.

So great were the crowds that came to the seaside to see Jesus that He was obliged to take precautions. He gave His disciples instructions that they should have a small boat ready at all times, with the oars, sails, and the necessary provisions in place, that He might use it at once, should necessity so demand. This was rendered unavoidable by the mass of people, for they rushed upon Him in their impetuousness and might have borne Him down. At the same time, His Savior's love urged Him to perform many miracles of healing, as they pressed upon Him, if only to touch Him. And the Lord permitted it in many cases that the mere touching of His garment or of His person brought healing, for they must realize that the power lay not in the clothing, but in the man. The word here used for sicknesses is very expressive, "scourge. " Diseases are therefore scourges of God, either in the form of a punishment, or in the form of a merciful chastening, inflicted by God or permitted by Him for the purpose of drawing men nearer to Him. And one of the worst scourges was the possession by demons, for also such poor unfortunate people as were afflicted with this terrible ailment were brought to the Lord. Invariably these people, when they caught sight of Him, or when they had looked at Him closely, fell down before Him at the urging of the demon in them, who must needs recognize in Christ the Lord of all, and cried out a confession of His divinity: Thou art the Son of God. But that was not the confession that the Savior sought; He wants no praise out of the mouth of Satan and his angels. He did not want to be revealed, did not want to be made known by them as the Messiah. Testimony from the enemies may have its value, but Jesus wanted the people to accept His Word and come to the knowledge of Him as the promised Redeemer through His Gospel.