We have here as much as it was thought fit we should know of the genealogy of this prophet and the chronology of this prophecy. 1. We are told what family the prophet was of. He was the son of Hilkiah, not that Hilkiah, it is supposed, who was high priest in Josiah’s time (for then he would have been called so, and not, as here, one of the priests that were in Anathoth), but another of the same name. Jeremiah signifies one raised up by the Lord. It is said of Christ that he is a prophet whom the Lord our God raised up unto us, Deut. 18:15. He was of the priests, and, as a priest, was authorized and appointed to teach the people; but to that authority and appointment God added the extraordinary commission of a prophet. Ezekiel also was a priest. Thus God would support the honour of the priesthood at a time when, by their sins and God’s judgments upon them, it was sadly eclipsed. He was of the priests in Anathoth, a city of priests, which lay about three miles from Jerusalem. Abiathar had his country house there, 1 Kgs. 2:26. 2. We have the general date of his prophecies, the knowledge of which is requisite to the understanding of them. (1.) He began to prophesy in the thirteenth year of Josiah’s reign, Jer. 1:2. Josiah, in the twelfth year of his reign, began a work of reformation, applied himself with all sincerity to purge Judah and Jerusalem from the high places, and the groves, and the images, 2 Chron. 34:3. And very seasonably then was this young prophet raised up to assist and encourage the young king in that good work. Then the word of the Lord came to him, not only a charge and commission to him to prophesy, but a revelation of the things themselves which he was to deliver. As it is an encouragement to ministers to be countenanced and protected by such pious magistrates as Josiah was, so it is a great help to magistrates, in any good work of reformation, to be advised and animated, and to have a great deal of their work done for them, by such faithful zealous ministers as Jeremiah was. Now, one would have expected when these two joined forces, such a prince, and such a prophet (as in a like case, Ezra 5:1, 2), and both young, such a complete reformation would be brought about and settled as would prevent the ruin of the church and state; but it proved quite otherwise. In the eighteenth year of Josiah we find there were a great many of the relics of idolatry that were not purged out; for what can the best princes and prophets do to prevent the ruin of a people that hate to be reformed? And therefore, though it was a time of reformation, Jeremiah continued to foretel the destroying judgments that were coming upon them; for there is no symptom more threatening to any people than fruitless attempts of reformation. Josiah and Jeremiah would have healed them, but they would not be healed. (2.) He continued to prophesy through the reigns of Jehoiakim and Zedekiah, each of whom reigned eleven years. He prophesied to the carrying away of Jerusalem captive (Jer. 1:3), that great event which he had so often prophesied of. He continued to prophesy after that, Jer. 40:1. But the computation here is made to end with that because it was the accomplishment of many of his predictions; and from the thirteenth of Josiah to the captivity was just forty years. Dr. Lightfoot observes that as Moses was so long with the people, a teacher in the wilderness, till they entered into their own land, Jeremiah was so long in their own land a teacher, before they went into the wilderness of the heathen: and he thinks that therefore a special mark is set upon the last forty years of the iniquity of Judah, which Ezekiel bore forty days, a day for a year, because during all that time they had Jeremiah prophesying among them, which was a great aggravation of their impenitency. God, in this prophet, suffered their manners, their ill manners, forty years, and at length swore in his wrath that they should not continue in his rest.