Isaiah 48:6

“Thou hast heard, see all this: and will ye not declare it? &c.] You have heard of all these things, how they were foretold before they were; how they came to pass exactly as they were predicted; now look over these prophecies, and compare them with the events; see the exact completion of them; and when you have so done, can you be so stouthearted and impudent as to deny them, or not own and confess them? I have showed thee new things from this time, even hidden things, and thou didst not know them; meaning the destruction of the Babylonish empire, and the deliverance of the Jews by Cyrus, prophesied just now in the preceding chapters; things not yet come to pass, newly revealed, which were…”

“Thou, &c.--So "ye are my witnesses" (Isa 43:10). Thou canst testify the prediction was uttered long before the fulfilment: "see all this," namely, that the event answers to the prophecy. declare--make the fact known as a proof that Jehovah alone is God (Isa 44:8). new things--namely, the deliverance from Babylon by Cyrus, new in contradistinction from former predictions that had been fulfilled (Isa 42:9; Isa 43:19). Antitypically, the prophecy has in view the "new things" of the gospel treasury (Sol 7:13; Mat 13:52; Co2 5:17; Rev 21:5). From this point forward, the prophecies as to Messiah's first and second advents and the restoration of Israel, have a new circumstantial distinctness, such…”

“Thou hast heard - You are witnesses that the prediction was uttered long before it was fulfilled. See all this - Behold how it is all fulfilled. Bear witness that the event is as it was predicted. And will ye not declare it? - Will you not bear witness to the entire fulfillment of the prophecy? God appeals to them as qualified to testify that what he had declared had come to pass, and calls on them to make this known as a demonstration that he alone was God (see the notes at Isaiah 44:8). I have showed thee new things from this time - From this time I make known a thing which has not before occurred, that you may have a similar demonstration that Yahweh is God. The ‘new thing’ here referred…”

“See - As thou hast heard all these things, from time to time, seriously consider them. Declare - I call you to witness: must you not be forced to acknowledge the truth of what I say? Shewed - And I have now given thee new predictions of secret things, such as 'till this time were wholly unknown to thee, concerning thy deliverance out of Babylon by Cyrus. Isaiah 48:7”

“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.”

“hast heard: Psa 107:43; Jer 2:31; Mic 6:9 and will: Isa 21:10, Isa 43:8-10; Psa 40:9, Psa 40:10, Psa 71:15-18, Psa 78:3-6, Psa 119:13, Psa 145:4, Psa 145:5; Jer 50:2; Mat 10:27; Act 1:8 showed: Isa 42:9; Dan 12:8-13; Amo 3:6; Joh 15:15; Rom 16:25, Rom 16:26; Co1 2:9; Pe1 1:10-12; Rev 1:19, Rev 4:1, Rev 5:1, Rev 5:2, 6:1-17 Isaiah 48:8”

“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…”