Contradiction with Proverbs 3:5
John 9:36 shows the man seeking understanding from Jesus, while Proverbs 3:5 advises to trust in the Lord and lean not on one's understanding.
Proverbs 3:5: Trust in the LORD with all thine heart; and lean not unto thine own understanding.
Contradiction with Hebrews 11:1
John 9:36 involves a man's desire for physical sight and confirmation, whereas Hebrews 11:1 defines faith as belief in things not seen.
Hebrews 11:1: Now faith is the substance of things hoped for, the evidence of things not seen. [substance: or, ground, or, confidence]
Contradiction with Matthew 16:4
John 9:36 reflects a desire for a sign (knowing who the Son of God is), contradicting Matthew 16:4, which criticizes seeking for signs.
Matthew 16:4: A wicked and adulterous generation seeketh after a sign; and there shall no sign be given unto it, but the sign of the prophet Jonas. And he left them, and departed.
Contradiction with James 1:6
John 9:36 indicates a state of uncertainty or doubt in knowing Jesus' identity, whereas James 1:6 calls for asking in faith without doubting.
James 1:6: But let him ask in faith, nothing wavering. For he that wavereth is like a wave of the sea driven with the wind and tossed.