Contradiction with 2 Chronicles 36:16
This verse describes how the people mocked God's messengers, leading to no joy, which contradicts the great joy described in 2 Chronicles 30:26.
2 Chronicles 36:16: But they mocked the messengers of God, and despised his words, and misused his prophets, until the wrath of the LORD arose against his people, till [there was] no remedy. [remedy: Heb. healing]
Contradiction with Isaiah 22:12-13
Instead of the joy and gladness in 2 Chronicles 30:26, this verse describes a time of revelry when there should have been mourning.
Isaiah 22:12-13: And in that day did the Lord GOD of hosts call to weeping, and to mourning, and to baldness, and to girding with sackcloth:
Contradiction with Amos 8:10
This verse foretells turning joyful feasts into mourning, in contrast to the joyous celebration in 2 Chronicles 30:26.
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
This verse depicts the joy of the heart ceasing, contradicting the description of great joy in Jerusalem in 2 Chronicles 30:26.
Lamentations 5:15: The joy of our heart is ceased; our dance is turned into mourning.
Contradiction with Micah 7:1-2
Laments over a lack of good people, opposing the joyful gathering in 2 Chronicles 30:26.
Micah 7:1-2: Woe is me! for I am as when they have gathered the summer fruits, as the grapegleanings of the vintage: [there is] no cluster to eat: my soul desired the firstripe fruit. [when...: Heb. the gatherings of summer]
Contradiction with Ezekiel 7:7
Describes the end and trouble, whereas 2 Chronicles 30:26 mentions great joy.
Ezekiel 7:7: The morning is come unto thee, O thou that dwellest in the land: the time is come, the day of trouble [is] near, and not the sounding again of the mountains. [sounding...: or, echo]