Contradiction with Matthew 5:44
Contradicts by encouraging love and prayer for enemies, whereas Daniel's respectful address in a den of lions seems based on fear or politeness.
Matthew 5:44: But I say unto you, Love your enemies, bless them that curse you, do good to them that hate you, and pray for them which despitefully use you, and persecute you;
Contradiction with Exodus 23:13
Contradicts as it commands complete avoidance of speaking names of other gods, but Daniel addresses a foreign king.
Exodus 23:13: And in all [things] that I have said unto you be circumspect: and make no mention of the name of other gods, neither let it be heard out of thy mouth.
Contradiction with Matthew 4:10
Contradicts Daniel showing respect to a king while this verse demands worship and service to God alone.
Matthew 4:10: Then saith Jesus unto him, Get thee hence, Satan: for it is written, Thou shalt worship the Lord thy God, and him only shalt thou serve.
Contradiction with Galatians 1:10
Contradicts by highlighting the choice of pleasing God over men, yet Daniel appears to speak favorably to a man.
Galatians 1:10: For do I now persuade men, or God? or do I seek to please men? for if I yet pleased men, I should not be the servant of Christ.
Contradiction with James 3:9
Contradicts by discussing the inconsistency of using the tongue to bless God and curse men, while Daniel blesses a potentially pagan king.
James 3:9: Therewith bless we God, even the Father; and therewith curse we men, which are made after the similitude of God.
Contradiction with Acts 5:29
Contradicts by emphasizing obedience to God over obedience to man, contrasting Daniel's polite interaction with a ruler.
Acts 5:29: Then Peter and the [other] apostles answered and said, We ought to obey God rather than men.
Contradiction with Ephesians 4:29
Contradicts through urging only communication that edifies, while Daniel’s address could be viewed as appeasement.
Ephesians 4:29: Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers. [to...: or, to edify profitably]