Huldah's message has two parts: one the confirmation of the threatenings of the Law; one the assurance to Josiah of acceptance of his repentance and gracious promise of escape from the coming storm. These two are precisely equivalent to the double aspect of the Gospel, which completes the Law, endorsing its sentence and pointing the way of escape.
Note that the former part addresses Josiah as 'the man that sent you,' but the latter names him. The embassy had probably not disclosed his name, and Huldah at first keeps up the veil, since the personality of the sender had nothing to do with her answer; but when she comes to speak of pardon and God's favour, there must be no vagueness in the destination of the message, and the penitent heart must be tenderly bound up by a word from God straight to itself. The threatenings are general, but each single soul that is sorry for sin may take as its very own the promise of forgiveness. God's great 'Whosoever' is for me as certainly as if my name stood on the page.
The terrible message of the inevitableness of the destruction hanging over Jerusalem is precisely parallel with the burden of all Jeremiah's teaching. It was too late to avert the fall. The external judgments must come now, for the emphasis of the prophecy is in its last words, it 'shall not be quenched.' But that did not mean that repentance was too late to alter the whole character of the punishment, which would be fatherly chastisement if meekly accepted. So, too, Jeremiah taught, when he exhorted submission to the 'Chaldees.' It is never too late to seek mercy, though it may be too late to hope for averting the outward consequences of sin.
As for Josiah, his penitence was accepted, and he was assured that he would be gathered to his fathers. That expression, as is clear from the places where it occurs, is not a synonym for either death or burial, from both of which it is distinguished, but is a dim promise of being united, beyond the grave, with the fathers, who, in some one condition, which we may call a place, are gathered into a restful company, and wander no more as pilgrims and sojourners in this lonely and changeful life.
Josiah died in battle. Was that going to his grave in peace? Surely yes! if, dying, he felt God's presence, and in the darkness saw a great light. He who thus dies, though it be in the thick of battle, and with his heart's blood pouring from an arrow-wound down on the floor of the chariot, dies in peace, and into peace.