Contradiction with Proverbs 3:5
Daniel 2:30 suggests understanding through divine revelation, while Proverbs 3:5 encourages trusting God completely without relying on one's understanding.
Proverbs 3:5: Trust in the LORD with all thine heart; and lean not unto thine own understanding.
Contradiction with Jeremiah 17:9
Daniel 2:30 implies insight can be given to a sincere heart, whereas Jeremiah 17:9 states the heart is deceitful above all things.
Jeremiah 17:9: The heart [is] deceitful above all [things], and desperately wicked: who can know it?
Contradiction with Isaiah 55:8-9
Daniel 2:30 speaks to human interpretation of God's messages, while Isaiah 55:8-9 emphasizes the vastness of difference between God's thoughts and human thoughts.
Isaiah 55:8-9: For my thoughts [are] not your thoughts, neither [are] your ways my ways, saith the LORD.
Contradiction with 1 Corinthians 2:14
Daniel 2:30 involves human receipt of divine wisdom, yet 1 Corinthians 2:14 notes that natural man does not accept things of the Spirit as they are folly to him.
1 Corinthians 2:14: But the natural man receiveth not the things of the Spirit of God: for they are foolishness unto him: neither can he know [them], because they are spiritually discerned.