Contradiction with Ezekiel 18:20
This verse emphasizes individual responsibility for sin, which contrasts with the idea in Jeremiah 33:8 of collective forgiveness.
Ezekiel 18:20: The soul that sinneth, it shall die. The son shall not bear the iniquity of the father, neither shall the father bear the iniquity of the son: the righteousness of the righteous shall be upon him, and the wickedness of the wicked shall be upon him.
Contradiction with Exodus 34:7
This verse mentions that God visits the iniquity of parents on children, contrasting with the promise of cleansing revealed in Jeremiah 33:8.
Exodus 34:7: Keeping mercy for thousands, forgiving iniquity and transgression and sin, and that will by no means clear [the guilty]; visiting the iniquity of the fathers upon the children, and upon the children's children, unto the third and to the fourth [generation].
Contradiction with Numbers 14:18
Similarly to Exodus 34:7, it discusses the iniquity of fathers affecting children, opposite to the cleansing of all iniquity as stated in Jeremiah 33:8.
Numbers 14:18: The LORD [is] longsuffering, and of great mercy, forgiving iniquity and transgression, and by no means clearing [the guilty], visiting the iniquity of the fathers upon the children unto the third and fourth [generation].
Contradiction with Hebrews 10:26-27
These verses speak about judgment and lack of forgiveness after willful sin, which contradicts the notion of forgiveness and pardon in Jeremiah 33:8.
Hebrews 10:26-27: For if we sin wilfully after that we have received the knowledge of the truth, there remaineth no more sacrifice for sins,
Contradiction with Matthew 12:31-32
The unforgivable sin mentioned here contrasts with the comprehensive forgiveness promised in Jeremiah 33:8.
Matthew 12:31-32: Wherefore I say unto you, All manner of sin and blasphemy shall be forgiven unto men: but the blasphemy [against] the [Holy] Ghost shall not be forgiven unto men.