Contradiction with Proverbs 1:5
Contradicts by suggesting that wise men will hear and increase learning, whereas Jeremiah 5:21 highlights the stubbornness and lack of understanding of the people.
Proverbs 1:5: A wise [man] will hear, and will increase learning; and a man of understanding shall attain unto wise counsels:
Contradiction with Matthew 13:16
Contradicts by stating that blessed are those who have eyes to see and ears to hear, opposite to the people in Jeremiah 5:21 who have eyes and ears yet do not perceive or hear.
Matthew 13:16: But blessed [are] your eyes, for they see: and your ears, for they hear.
Contradiction with Isaiah 6:10
Contradicts by the intentional hardening of the people's hearts, eyes, and ears, while Jeremiah 5:21 points out their existing condition of lack of perception without implying divine cause.
Isaiah 6:10: Make the heart of this people fat, and make their ears heavy, and shut their eyes; lest they see with their eyes, and hear with their ears, and understand with their heart, and convert, and be healed.
Contradiction with Ezekiel 12:2
Contradicts by emphasizing the rebellious nature of the house of Israel that has eyes to see and ears to hear, similar to Jeremiah 5:21, yet highlights rebellion specifically.
Ezekiel 12:2: Son of man, thou dwellest in the midst of a rebellious house, which have eyes to see, and see not; they have ears to hear, and hear not: for they [are] a rebellious house.