II. The instructions which Jeremiah gave to Baruch his scribe, pursuant to the command he had received from God, and the writing of the roll accordingly, v. 4. God bade Jeremiah write, but, it should seem, he had not the pen of a ready writer, he could not write fast, or fair, so as Baruch could, and therefore he made use of him as his amanuensis. St. Paul wrote but few of his epistles with his own hand, Gal. vi. 11; Rom. xvi. 22. God dispenses his gifts variously; some have a good faculty at speaking, others at writing, and neither can say to the other, We have no need of you, 1 Cor. xii. 21. The Spirit of God dictated to Jeremiah, and he to Baruch, who had been employed by Jeremiah as trustee for him in his purchase of the field (ch. xxxii. 12) and now was advanced to be his scribe and substitute in his prophetical office; and, if we may credit the apocryphal book that bears his name, he was afterwards himself a prophet to the captives in Babylon. Those that begin low are likely to rise high, and it is good for those that are designed for prophets to have their education under prophets and to be serviceable to them. Baruch wrote what Jeremiah dictated in a roll of a book on pieces of parchment, or vellum, which were joined together, the top of one to the bottom of the other, so making one long scroll, which was rolled perhaps upon a staff.