Contradiction with Isaiah 1:18
This verse suggests a conditional forgiveness based on repentance, unlike Isaiah 44:21 which offers a more unconditional sense of God not forgetting or abandoning.
Isaiah 1:18: Come now, and let us reason together, saith the LORD: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.
Contradiction with Ezekiel 18:24
Suggests that a righteous person can turn away from righteousness and be forgotten, contrasting the assurance in Isaiah 44:21.
Ezekiel 18:24: But when the righteous turneth away from his righteousness, and committeth iniquity, [and] doeth according to all the abominations that the wicked [man] doeth, shall he live? All his righteousness that he hath done shall not be mentioned: in his trespass that he hath trespassed, and in his sin that he hath sinned, in them shall he die.
Contradiction with Hebrews 6:4-6
Implies the impossibility of restoration for those who fall away, contradicting the continual remembrance and forgiveness implied in Isaiah 44:21.
Hebrews 6:4-6: For [it is] impossible for those who were once enlightened, and have tasted of the heavenly gift, and were made partakers of the Holy Ghost,
Contradiction with Jeremiah 15:1
Indicates that some prayers cannot sway God's decision, which contrasts with the unshakeable support promised in Isaiah 44:21.
Jeremiah 15:1: Then said the LORD unto me, Though Moses and Samuel stood before me, [yet] my mind [could] not [be] toward this people: cast [them] out of my sight, and let them go forth.
Contradiction with Matthew 7:23
Speaks of rejection despite prior association, contradicting the promise in Isaiah 44:21 that God will not forget Israel.
Matthew 7:23: And then will I profess unto them, I never knew you: depart from me, ye that work iniquity.