Matthew Poole and continuators on Jeremiah 32:12

12 And I gave the evidence of the purchase unto Baruch the son of Neriah, the son of Maaseiah , in the sight of Hanameel my uncles son, and in the presence of the witnesses, that subscribed the book of the purchase, before all the Jews that sate in the court of the prison .

This Baruch (as appeareth from chap. 36.4, 26.) was a Scribe, and an attendant upon Ieremiah, and one who wrote things for him, and from his mouth.

He made this purchase with all the usual formalities, to make it publick, he signed and sealed it before witnesses, and delivered it to Baruch, to keep in the presence of them all, and in the presence of the Iews, who casually were in the place when the thing was done.

Marginal references: See Isa. 8.2.