Mark 3:9-12

And He told His disciples to have a small boat stand ready for Him because of the many people, so that they would not crowd Him; for He had healed many, and as a result all who had diseases pressed around Him to touch Him. Whenever the unclean spirits saw Him, they fell down before Him and screamed out, “You are the Son of God!” Jesus sternly warned them [again and again] not to tell who He was.