Contradiction with Isaiah 60:20
This verse speaks of an everlasting light and an end to mourning, which contrasts with the desolation and mourning in Isaiah 3:26.
Isaiah 60:20: Thy sun shall no more go down; neither shall thy moon withdraw itself: for the LORD shall be thine everlasting light, and the days of thy mourning shall be ended.
Contradiction with Revelation 21:4
It promises a future without crying or pain, contradicting the lamentation in Isaiah 3:26.
Revelation 21:4: And God shall wipe away all tears from their eyes; and there shall be no more death, neither sorrow, nor crying, neither shall there be any more pain: for the former things are passed away.
Contradiction with Isaiah 61:3
God promises to comfort those who mourn and give them beauty for ashes, which stands in contrast to the state of mourning in Isaiah 3:26.
Isaiah 61:3: To appoint unto them that mourn in Zion, to give unto them beauty for ashes, the oil of joy for mourning, the garment of praise for the spirit of heaviness; that they might be called trees of righteousness, the planting of the LORD, that he might be glorified.
Contradiction with Psalm 30:5
This verse highlights joy coming in the morning, whereas Isaiah 3:26 describes prolonged mourning and desolation.
Psalm 30:5: For his anger [endureth but] a moment; in his favour [is] life: weeping may endure for a night, but joy [cometh] in the morning. [his anger...: Heb. there is but a moment in his anger] [for a night: Heb. in the evening] [joy: Heb. singing]