Contradiction with Matthew 10:5-6
Jesus specifically instructs the apostles to go only to the lost sheep of Israel, not to the Gentiles or Samaritans, which contrasts with the universal directive of Mark 16:15 to preach to every creature.
Matthew 10:5-6: These twelve Jesus sent forth, and commanded them, saying, Go not into the way of the Gentiles, and into [any] city of the Samaritans enter ye not:
Contradiction with Matthew 15:24
Jesus states that he was sent only to the lost sheep of the house of Israel, contrasting the inclusive mission in Mark 16:15.
Matthew 15:24: But he answered and said, I am not sent but unto the lost sheep of the house of Israel.
Contradiction with Acts 16:7
The Holy Spirit prevents Paul and his companions from preaching in certain regions, which seems to contradict the directive to preach to every creature in Mark 16:15.
Acts 16:7: After they were come to Mysia, they assayed to go into Bithynia: but the Spirit suffered them not.
Contradiction with Romans 15:20
Paul mentions his ambition to preach where Christ was not known, implying selective preaching areas, unlike the universal mandate of Mark 16:15.
Romans 15:20: Yea, so have I strived to preach the gospel, not where Christ was named, lest I should build upon another man's foundation:
Contradiction with Galatians 2:9
Paul mentions that Peter, James, and John agreed that he would go to the Gentiles while they go to the circumcised, implying a division of mission rather than the universal outreach of Mark 16:15.
Galatians 2:9: And when James, Cephas, and John, who seemed to be pillars, perceived the grace that was given unto me, they gave to me and Barnabas the right hands of fellowship; that we [should go] unto the heathen, and they unto the circumcision.
Paradox #1
One possible contradiction related to this verse is the debate over the authenticity of the longer ending of the Gospel of Mark. Some scholars argue that the verses following Mark 16:8, including Mark 16:15, may not have been part of the original text due to differences in manuscript evidence. This raises questions about the consistency and reliability of the message in these verses compared to the rest of the New Testament.
Paradox #2
Some scholars have pointed out that the final section of the Gospel of Mark, where this verse is found, may not have been part of the original manuscript. They argue that the earliest copies of the Gospel do not include these verses, suggesting they were added later. This can be seen as a contradiction or inconsistency in the historical transmission of the text.
Paradox #3
Some people might see a conflict in the idea of spreading religious beliefs to everyone, as it could clash with the values of religious freedom and respecting diverse beliefs. This can lead to tension between sharing one's faith and respecting others' right to choose their own beliefs.