Contradiction with Matthew 5:9
Daniel 11:23 involves deceitful practices, whereas Matthew 5:9 blesses peacemakers.
Matthew 5:9: Blessed [are] the peacemakers: for they shall be called the children of God.
Contradiction with Proverbs 12:22
The deceit in Daniel 11:23 is contradicted by Proverbs 12:22, which states that lying lips are abomination to the Lord.
Proverbs 12:22: Lying lips [are] abomination to the LORD: but they that deal truly [are] his delight.
Contradiction with Ephesians 4:25
Daniel 11:23 speaks of dealing deceitfully, while Ephesians 4:25 encourages speaking truth with one another.
Ephesians 4:25: Wherefore putting away lying, speak every man truth with his neighbour: for we are members one of another.
Contradiction with Psalm 101:7
Daniel 11:23 highlights deceit, but Psalm 101:7 states that he who works deceit shall not dwell in God's house.
Psalm 101:7: He that worketh deceit shall not dwell within my house: he that telleth lies shall not tarry in my sight. [shall not tarry: Heb. shall not be established]
Contradiction with John 8:44
The deceit in Daniel 11:23 contrasts John 8:44, where lying is associated with the devil.
John 8:44: Ye are of [your] father the devil, and the lusts of your father ye will do. He was a murderer from the beginning, and abode not in the truth, because there is no truth in him. When he speaketh a lie, he speaketh of his own: for he is a liar, and the father of it. [of his own: or, from his own will or disposition]