Contradiction with Exodus 15:3
Contradicts the notion of God being peaceful in His actions, as He is portrayed as a man of war.
Exodus 15:3: The LORD [is] a man of war: the LORD [is] his name.
Contradiction with Isaiah 45:7
Presents God as the creator of evil, which contrasts with the joyous and praiseworthy depiction in Psalms 68:4.
Isaiah 45:7: I form the light, and create darkness: I make peace, and create evil: I the LORD do all these [things].
Contradiction with Matthew 10:34
Jesus speaks of bringing a sword, contrary to the peaceful praise alluded to in Psalms 68:4.
Matthew 10:34: Think not that I am come to send peace on earth: I came not to send peace, but a sword.
Contradiction with Jeremiah 4:26
Describes God's fierce anger, conflicting with the joyful and positive tone in Psalms 68:4.
Jeremiah 4:26: I beheld, and, lo, the fruitful place [was] a wilderness, and all the cities thereof were broken down at the presence of the LORD, [and] by his fierce anger.
Contradiction with Lamentations 3:38
Implies both good and bad proceed from God, opposing the purely positive portrayal in Psalms 68:4.
Lamentations 3:38: Out of the mouth of the most High proceedeth not evil and good?