Contradiction with Genesis 1:31
This verse describes God's creation as "very good," which contrasts with the mourning and lamentation depicted in Ezekiel 31:15.
Genesis 1:31: And God saw every thing that he had made, and, behold, [it was] very good. And the evening and the morning were the sixth day. [And the evening...: Heb. And the evening was, and the morning was etc.]
Contradiction with Isaiah 55:12
This verse speaks of joy and peace, contrasting with the mourning and lamentation in Ezekiel 31:15.
Isaiah 55:12: For ye shall go out with joy, and be led forth with peace: the mountains and the hills shall break forth before you into singing, and all the trees of the field shall clap [their] hands.
Contradiction with Revelation 21:4
In Revelation, God wipes away tears and eliminates mourning, contrasting with the lamenting foretold in Ezekiel 31:15.
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 Psalm 30:11
This verse describes turning mourning into dancing, which is the opposite of the lamenting and mourning described in Ezekiel 31:15.
Psalm 30:11: Thou hast turned for me my mourning into dancing: thou hast put off my sackcloth, and girded me with gladness;
Contradiction with Isaiah 61:3
This verse talks about giving beauty for ashes and joy for mourning, offering hope and restoration rather than the mourning in Ezekiel 31:15.
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.