Contradiction with Exodus 34:14
Contradicts the royal setting and reverence in Psalms 45:9 by emphasizing that God is a jealous God who demands exclusive worship.
Exodus 34:14: For thou shalt worship no other god: for the LORD, whose name [is] Jealous, [is] a jealous God:
Contradiction with Matthew 6:24
Contradicts the imagery of royal allegiance in Psalms 45:9 by stating that one cannot serve two masters, highlighting undivided devotion.
Matthew 6:24: No man can serve two masters: for either he will hate the one, and love the other; or else he will hold to the one, and despise the other. Ye cannot serve God and mammon.
Contradiction with James 4:4
Contradicts the association with worldly honor in Psalms 45:9 by labeling friendship with the world as enmity against God.
James 4:4: Ye adulterers and adulteresses, know ye not that the friendship of the world is enmity with God? whosoever therefore will be a friend of the world is the enemy of God.