Contradiction with Romans 6:14
Indicates that believers are not under the law but under grace, which conflicts with the observance of feast days in Leviticus.
Romans 6:14: For sin shall not have dominion over you: for ye are not under the law, but under grace.
Contradiction with Hebrews 8:13
Declares the old covenant obsolete, contradicting the continued observance of the Levitical feasts.
Hebrews 8:13: In that he saith, A new [covenant], he hath made the first old. Now that which decayeth and waxeth old [is] ready to vanish away.