Yirmeyah 36:17-19

Orthodox Jewish Bible

¹⁷ And they asked Baruch, saying, Tell us now, How didst thou write all these Devarim at his peh (mouth [Jeremiah’s dictation])?

¹⁸ Then Baruch answered them, He pronounced all these Devarim unto me with his peh (mouth, dictation) and I wrote them with dyo (ink) in the Sefer.

¹⁹ Then said the sarim unto Baruch, Go, hide thee, thou and Yirmeyah; and let no ish have da’as of where ye be.