Contradiction with Matthew 10:34
Mark 6:34 speaks of Jesus' compassion and teaching, while Matthew 10:34 describes Jesus bringing a sword, indicating division rather than peace.
Matthew 10:34: Think not that I am come to send peace on earth: I came not to send peace, but a sword.
Contradiction with Luke 12:49
Mark 6:34 shows Jesus being compassionate and peaceful, whereas Luke 12:49 depicts him as bringing fire and division.
Luke 12:49: I am come to send fire on the earth; and what will I, if it be already kindled?
Contradiction with John 2:15
In contrast to the compassion in Mark 6:34, John 2:15 shows Jesus displaying anger as he drives out the money changers.
John 2:15: And when he had made a scourge of small cords, he drove them all out of the temple, and the sheep, and the oxen; and poured out the changers' money, and overthrew the tables;
Contradiction with Matthew 15:24
Mark 6:34 illustrates Jesus' compassion for a multitude, unlike Matthew 15:24, where Jesus states his mission is only to the lost sheep of Israel.
Matthew 15:24: But he answered and said, I am not sent but unto the lost sheep of the house of Israel.