Contradiction with Exodus 34:6-7
God is merciful and forgiving, whereas Jeremiah 20:6 pronounces a harsh prophecy of doom.
Exodus 34:6-7: And the LORD passed by before him, and proclaimed, The LORD, The LORD God, merciful and gracious, longsuffering, and abundant in goodness and truth,
Contradiction with Romans 8:28
This verse suggests that all things work for the good of those who love God, contrasting with the calamity predicted in Jeremiah 20:6.
Romans 8:28: And we know that all things work together for good to them that love God, to them who are the called according to [his] purpose.
Contradiction with John 3:16
Speaks of God's love and the possibility of eternal life, which contrasts with the message of destruction in Jeremiah 20:6.
John 3:16: For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
Contradiction with Isaiah 55:7
Encourages repentance and promises abundant pardon, unlike the seemingly inevitable punishment in Jeremiah 20:6.
Isaiah 55:7: Let the wicked forsake his way, and the unrighteous man his thoughts: and let him return unto the LORD, and he will have mercy upon him; and to our God, for he will abundantly pardon. [the unrighteous...: Heb. the man of iniquity] [abundantly...: Heb. multiply to pardon]
Contradiction with Ezekiel 18:23
God takes no pleasure in the death of the wicked, which contrasts with the certainty of death pronounced in Jeremiah 20:6.
Ezekiel 18:23: Have I any pleasure at all that the wicked should die? saith the Lord GOD: [and] not that he should return from his ways, and live?