Contradiction with Proverbs 8:9
This verse is about clear and plain understanding, contrary to the reason for speaking in parables stated in Matthew 13:13.
Proverbs 8:9: They [are] all plain to him that understandeth, and right to them that find knowledge.
Contradiction with John 18:20
Jesus states He spoke openly to the world, contradicting the parabolic teaching method for veiling understanding described in Matthew 13:13.
John 18:20: Jesus answered him, I spake openly to the world; I ever taught in the synagogue, and in the temple, whither the Jews always resort; and in secret have I said nothing.
Contradiction with 2 Corinthians 3:12
This verse talks about using great plainness of speech, which contradicts the concealed message in parables that Matthew 13:13 suggests.
2 Corinthians 3:12: Seeing then that we have such hope, we use great plainness of speech: [plainness: or, boldness]
Contradiction with 1 Corinthians 14:33
States that God is not the author of confusion, which conflicts with the deliberate obscurity implied in Matthew 13:13.
1 Corinthians 14:33: For God is not [the author] of confusion, but of peace, as in all churches of the saints. [confusion: Gr. tumult, or, unquietness]
Paradox #1
Matthew 13:13 might present a contradiction or inconsistency by suggesting that some people are intentionally not given the ability to understand or perceive certain truths, despite the value of understanding. This could raise questions about fairness and the universal accessibility of spiritual insight or truth.