Contradiction with Mark 10:46-52
In Mark 10:46-52, Jesus heals blind Bartimaeus instantly and publicly, whereas in Mark 8:22, Jesus takes the blind man outside the village and heals him gradually.
Mark 10:46-52: And they came to Jericho: and as he went out of Jericho with his disciples and a great number of people, blind Bartimaeus, the son of Timaeus, sat by the highway side begging.
Contradiction with John 9:1-7
In John 9:1-7, Jesus heals a man blind from birth in a single step using mud, contrasting with the two-step process in Mark 8:22.
John 9:1-7: And as [Jesus] passed by, he saw a man which was blind from [his] birth.
Contradiction with Matthew 20:30-34
In Matthew 20:30-34, two blind men are healed immediately without being led out of the city, unlike the scenario in Mark 8:22.
Matthew 20:30-34: And, behold, two blind men sitting by the way side, when they heard that Jesus passed by, cried out, saying, Have mercy on us, O Lord, [thou] Son of David.
Contradiction with Luke 18:35-43
In Luke 18:35-43, Jesus heals a blind man instantaneously upon request, which contrasts with the multi-step process in Mark 8:22.
Luke 18:35-43: And it came to pass, that as he was come nigh unto Jericho, a certain blind man sat by the way side begging: