Contradiction with Matthew 28:19
This verse instructs disciples to teach all nations and baptize them, which contrasts with the secrecy Jesus requests in Mark 5:43.
Matthew 28:19: Go ye therefore, and teach all nations, baptizing them in the name of the Father, and of the Son, and of the Holy Ghost: [teach...: or, make disciples, or, Christians of all nations]
Contradiction with Mark 1:44
Here, Jesus tells a healed leper to show himself to the priest as a testimony, contrasting with the command for silence in Mark 5:43.
Mark 1:44: And saith unto him, See thou say nothing to any man: but go thy way, shew thyself to the priest, and offer for thy cleansing those things which Moses commanded, for a testimony unto them.
Contradiction with John 4:29
The Samaritan woman invites others to come see Jesus, contrary to the private nature Jesus asks for in Mark 5:43.
John 4:29: Come, see a man, which told me all things that ever I did: is not this the Christ?
Contradiction with Matthew 5:16
Encourages letting your light shine before others, while Mark 5:43 involves a command for secrecy.
Matthew 5:16: Let your light so shine before men, that they may see your good works, and glorify your Father which is in heaven.
Contradiction with Acts 1:8
Jesus tells the disciples to be witnesses to the ends of the earth, seemingly opposing the instruction of silence in Mark 5:43.
Acts 1:8: But ye shall receive power, after that the Holy Ghost is come upon you: and ye shall be witnesses unto me both in Jerusalem, and in all Judaea, and in Samaria, and unto the uttermost part of the earth. [power...: or, the power of the Holy Ghost coming upon you]