Contradiction with Jeremiah 7:34
While Isaiah 29:1 refers to Ariel, where festivals continue, Jeremiah 7:34 predicts a cessation of joy and festivals in Jerusalem, implying opposite conditions.
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 Isaiah 5:12
Isaiah 29:1 is about religious gatherings and solemnities, while Isaiah 5:12 criticizes those who indulge in feasts without regard for the work of the Lord, contrasting the purpose of gatherings.
Isaiah 5:12: And the harp, and the viol, the tabret, and pipe, and wine, are in their feasts: but they regard not the work of the LORD, neither consider the operation of his hands.
Contradiction with Lamentations 1:4
Isaiah 29:1 talks about regular feasts, but Lamentations 1:4 describes the roads to Zion mourning because no one comes to the appointed feasts.
Lamentations 1:4: The ways of Zion do mourn, because none come to the solemn feasts: all her gates are desolate: her priests sigh, her virgins are afflicted, and she [is] in bitterness.
Contradiction with Amos 8:10
Isaiah 29:1 alludes to celebrations, yet Amos 8:10 foretells turning feasts into mourning, which contradicts the celebration context.
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 Isaiah 1:13-14
Isaiah 29:1 acknowledges feasts, while Isaiah 1:13-14 expresses God’s disdain for vain offerings and festivals, signifying a contradiction in their value.
Isaiah 1:13-14: Bring no more vain oblations; incense is an abomination unto me; the new moons and sabbaths, the calling of assemblies, I cannot away with; [it is] iniquity, even the solemn meeting. [iniquity: or, grief]