Contradiction with Exodus 34:27
God commands Moses to write down the words himself, contradicting the idea of using a scribe like Baruch to write down God's words as in Jeremiah 36:4.
Exodus 34:27: And the LORD said unto Moses, Write thou these words: for after the tenor of these words I have made a covenant with thee and with Israel.
Contradiction with Galatians 6:11
Paul writes with his own hand, showing a direct contradiction to using a scribe to pen the words.
Galatians 6:11: Ye see how large a letter I have written unto you with mine own hand.
Contradiction with Revelation 1:11
John is instructed to write directly what he sees in a book, contrasting with Jeremiah dictating to a scribe.
Revelation 1:11: Saying, I am Alpha and Omega, the first and the last: and, What thou seest, write in a book, and send [it] unto the seven churches which are in Asia; unto Ephesus, and unto Smyrna, and unto Pergamos, and unto Thyatira, and unto Sardis, and unto Philadelphia, and unto Laodicea.
Contradiction with Isaiah 8:1
God instructs Isaiah to write on a large scroll himself, differing from Jeremiah using Baruch.
Isaiah 8:1: Moreover the LORD said unto me, Take thee a great roll, and write in it with a man's pen concerning Mahershalalhashbaz. [Mahershalalhashbaz: Heb. In making speed to the spoil he hasteneth the prey, or, Make speed, etc]