Contradiction with Matthew 7:21
This verse contradicts with Matthew 21:29, as it emphasizes the necessity of doing the will of the Father rather than mere promises or verbal commitments, opposing the change of mind depicted in Matthew 21:29.
Matthew 7:21: Not every one that saith unto me, Lord, Lord, shall enter into the kingdom of heaven; but he that doeth the will of my Father which is in heaven.
Contradiction with James 1:22
This verse contradicts with Matthew 21:29 by stressing the importance of being doers of the word and not hearers only, contrasting the initial refusal to act in Matthew 21:29.
James 1:22: But be ye doers of the word, and not hearers only, deceiving your own selves.
Contradiction with Luke 6:46
This verse contradicts with Matthew 21:29 by questioning why individuals call Him Lord but do not do what He says, contrasting the eventual obedience of the son who initially refused in Matthew 21:29.
Luke 6:46: And why call ye me, Lord, Lord, and do not the things which I say?