Contradiction with Psalm 85:1
Isaiah 9:12 speaks of God's anger and judgment, while Psalm 85:1 discusses God turning away His anger and showing favor to the land.
Psalm 85:1: [To the chief Musician, A Psalm for the sons of Korah.] LORD, thou hast been favourable unto thy land: thou hast brought back the captivity of Jacob. [for the sons: or, of the sons] [favourable: or, well pleased]
Contradiction with Jeremiah 29:11
Isaiah 9:12 describes destruction, whereas Jeremiah 29:11 speaks of God's plans for peace and hope.
Jeremiah 29:11: For I know the thoughts that I think toward you, saith the LORD, thoughts of peace, and not of evil, to give you an expected end. [expected...: Heb. end and expectation]
Contradiction with Isaiah 54:10
Isaiah 9:12 highlights God's wrath, but Isaiah 54:10 emphasizes God's compassion and enduring peace.
Isaiah 54:10: For the mountains shall depart, and the hills be removed; but my kindness shall not depart from thee, neither shall the covenant of my peace be removed, saith the LORD that hath mercy on thee.
Contradiction with Lamentations 3:31-32
Isaiah 9:12 depicts ongoing anger, yet Lamentations 3:31-32 assures that the Lord will not cast off forever and promises compassion.
Lamentations 3:31-32: For the Lord will not cast off for ever:
Contradiction with Micah 7:18
While Isaiah 9:12 reflects on God's wrath, Micah 7:18 highlights God's forgiveness and delight in mercy.
Micah 7:18: Who [is] a God like unto thee, that pardoneth iniquity, and passeth by the transgression of the remnant of his heritage? he retaineth not his anger for ever, because he delighteth [in] mercy.
Contradiction with Zephaniah 3:17
Isaiah 9:12 speaks of retribution, contrary to Zephaniah 3:17, which describes God rejoicing over His people with joy and love.
Zephaniah 3:17: The LORD thy God in the midst of thee [is] mighty; he will save, he will rejoice over thee with joy; he will rest in his love, he will joy over thee with singing. [rest: Heb. be silent]
Contradiction with 1 Thessalonians 5:9
Isaiah 9:12 focuses on judgment, but 1 Thessalonians 5:9 mentions that God has not appointed us to wrath but to obtain salvation.
1 Thessalonians 5:9: For God hath not appointed us to wrath, but to obtain salvation by our Lord Jesus Christ,