he went down to the scribe’s chamber in the king’s palace, where all the officials were sitting: Elishama the scribe, Delaiah son of Shemaiah, Elnathan son of Achbor, Gemariah son of Shaphan, Zedekiah son of Hananiah, and all the other officials.
It is not known with what design this Michaiah came to the princes and the king’s counsellors, he may have been an informer, who intended to create ill-will to the Prophet, and to ingratiate himself with the princes, as courtiers usually do.
It should seem that Baruch had been frequently reading out of the book, to all companies that would give him the hearing, before the most solemn reading of it altogether which is here spoken of; for the directions were given about it in the fourth year of Jehoiakim, whereas this was done in the fifth year, Jer 36:9.
Commenting on Jeremiah 36:9-19
Then he went down into the king's house,.... The royal palace, which was not upon the mountain on which the temple stood, but lay lower, and therefore Micaiah is said to go down to it; with what design he went thither is not certain, whether out of ill will to Jeremiah and Baruch, or out of good will, being affected with what he had heard...