Contradiction with Exodus 4:10
Moses expresses his inability to speak eloquently, whereas Jeremiah 1:9 depicts God empowering speech.
Exodus 4:10: And Moses said unto the LORD, O my Lord, I [am] not eloquent, neither heretofore, nor since thou hast spoken unto thy servant: but I [am] slow of speech, and of a slow tongue. [eloquent: Heb. a man of words] [heretofore: Heb. since yesterday, nor since the third day]
Contradiction with Matthew 10:20
Jesus tells his disciples that the Spirit of the Father speaks through them, while Jeremiah 1:9 describes the Lord putting His words directly into Jeremiah's mouth.
Matthew 10:20: For it is not ye that speak, but the Spirit of your Father which speaketh in you.
Contradiction with 1 Corinthians 2:1-4
Paul emphasizes his reliance not on eloquent words but the Spirit's power, differing from Jeremiah 1:9 where God directly provides words.
1 Corinthians 2:1-4: And I, brethren, when I came to you, came not with excellency of speech or of wisdom, declaring unto you the testimony of God.
Contradiction with 2 Corinthians 11:6
Paul admits to being unskilled in speaking, contrasting with Jeremiah’s assurance of God putting words in his mouth.
2 Corinthians 11:6: But though [I be] rude in speech, yet not in knowledge; but we have been throughly made manifest among you in all things.
Contradiction with Exodus 6:30
Moses questions his speaking ability, contrasting with God's direct empowerment of Jeremiah with speech in Jeremiah 1:9.
Exodus 6:30: And Moses said before the LORD, Behold, I [am] of uncircumcised lips, and how shall Pharaoh hearken unto me?