Contradiction with Matthew 6:16
This verse discusses fasting in secret without showing outward signs of distress, whereas Daniel 6:18 highlights the king's visible discomfort and abstention.
Matthew 6:16: Moreover when ye fast, be not, as the hypocrites, of a sad countenance: for they disfigure their faces, that they may appear unto men to fast. Verily I say unto you, They have their reward.
Contradiction with Proverbs 31:6-7
Advises giving drink to those who are in distress, contrasting with the king avoiding food and entertainment while distressed in Daniel 6:18.
Proverbs 31:6-7: Give strong drink unto him that is ready to perish, and wine unto those that be of heavy hearts. [of...: Heb. bitter of soul]
Contradiction with Ecclesiastes 8:15
Encourages eating and drinking to enjoy life, which contradicts the king's actions of abstaining from food and entertainment in Daniel 6:18.
Ecclesiastes 8:15: Then I commended mirth, because a man hath no better thing under the sun, than to eat, and to drink, and to be merry: for that shall abide with him of his labour the days of his life, which God giveth him under the sun.
Contradiction with Philippians 4:4
Encourages continual rejoicing, in contrast to the king's anxious and somber demeanor described in Daniel 6:18.
Philippians 4:4: Rejoice in the Lord alway: [and] again I say, Rejoice.
Contradiction with Matthew 11:28
Offers rest to the weary, whereas in Daniel 6:18, the king is described as having a sleepless night.
Matthew 11:28: Come unto me, all [ye] that labour and are heavy laden, and I will give you rest.