Contradiction with Job 3:7
Nehemiah 12:43 describes a great celebration, while Job 3:7 desires a day of destruction and silence, contrasting joy with desolation.
Job 3:7: Lo, let that night be solitary, let no joyful voice come therein.
Contradiction with Ecclesiastes 7:2
Nehemiah 12:43 involves joy and gladness, whereas Ecclesiastes 7:2 suggests it is better to go to the house of mourning than feasting.
Ecclesiastes 7:2: [It is] better to go to the house of mourning, than to go to the house of feasting: for that [is] the end of all men; and the living will lay [it] to his heart.
Contradiction with Jeremiah 7:34
Nehemiah 12:43 mentions joy and rejoicing, but Jeremiah 7:34 foretells the removal of joy and gladness from the land.
Jeremiah 7:34: Then will I cause to cease from the cities of Judah, and from the streets of Jerusalem, the voice of mirth, and the voice of gladness, the voice of the bridegroom, and the voice of the bride: for the land shall be desolate.
Contradiction with Matthew 6:16
Nehemiah 12:43 is filled with joy and public celebration, yet Matthew 6:16 advises against outward displays, suggesting a more inward focus.
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 Amos 8:10
Nehemiah 12:43 centers on joy, whereas Amos 8:10 speaks of turning feasts into mourning.
Amos 8:10: And I will turn your feasts into mourning, and all your songs into lamentation; and I will bring up sackcloth upon all loins, and baldness upon every head; and I will make it as the mourning of an only [son], and the end thereof as a bitter day.
Contradiction with Lamentations 5:15
Nehemiah 12:43 speaks of joyous celebration, yet Lamentations 5:15 speaks of joy ceasing and mourning taking over.
Lamentations 5:15: The joy of our heart is ceased; our dance is turned into mourning.