Jesaja 48:6

But in order to determine exactly what "the former things" were, which Jehovah had foretold in order that Israel might not ascribe them to this idol or the other, we must add Isa 48:6-8 : "Thou hast heard it, look then at it all; and ye, must ye not confess it? I give thee new things to hear from this time forth, and hidden things, and what thou didst not know. It is created now, and not long ago; and thou hast not heard it before, that thou mightest not say, Behold, I knew it. Thou hast neither heard it, nor known it, nor did thine ear open itself to it long ago: for I knew thou art altogether faithless, and thou art called rebellious from the womb." The meaning of the question in Isa 48:6 is very obvious: they must acknowledge and attest, even thou against their will (Isa 43:10; Isa 44:8), that Jehovah has foretold all that is now confirmed by the evident fulfilment. Consequently the "former things" are the events experienced by the people from the very earliest times (Isa 46:9) down to the present times of Cyrus, and more especially the first half or epoch of this period itself, which expired at the time that formed the prophet's standpoint. And as the object of the prediction was to guard Israel against ascribing to its idols that which had taken place (which can only be understood of events that had occurred in favour of Israel), the "former things" must include the preparation for the redemption of Israel from the Babylonian captivity through the revolution brought to pass by Cyrus. Hence the "new things" will embrace the redemption of Israel with its attendant circumstances, and that not merely on its outward side, but on its spiritual side as well; also the glorification of the redeemed people in the midst of a world of nations converted to the God of Israel, an…

God, having in the foregoing chapter reckoned with the Babylonians, and shown them their sins and the desolation that was coming upon them for their sins, to show that he hates sin wherever he finds it and will not connive at it in his own people, comes, in this chapter, to show the house of Jacob their sins, but, withal, the mercy God had in store for them notwithstanding; and he therefore sets their sins in order before them, that by their repentance and reformation they might be prepared for that mercy. I. He charges them with hypocrisy in that which is good and obstinacy in that which is evil, especially in their idolatry, notwithstanding the many convincing proofs God had given them that he is God alone, (Isa 48:1-8). II. He assures them that their deliverance would be wrought purely for the sake of God's own name and not for any merit of theirs (Isa 48:9-11). III. He encourages them to depend purely upon God's power and promise for this deliverance (Isa 48:12-15). IV. He shows them that, as it was by their own sin that they brought themselves into captivity, so it would be only by the grace of God that they would obtain the necessary preparatives for their enlargement (Isa 48:16-19). V. He proclaims their release, yet with a proviso that the wicked shall have no benefit by it (Isa 48:20-22).

48:6-7 Even though Israel had repeatedly failed to believe God’s past predictions, here he revealed new things that were not yet heard. Specifically, God revealed that Babylon would fall and Israel would be restored.