Note; this is a bit speculative and based mainly on thematic parallels. The central part contrasts the idols of Babylon that cannot help, with YHWH who proves His power by fulfilling His prophecy about the fall of Babylon.
A. 45:24 Surely, shall one say, in the LORD have I righteousness and strength: even to him shall men come; and all that are incensed against him shall be ashamed. 25 In the LORD shall all the seed of Israel be justified, and shall glory.
B. 46:1 Bel boweth down, Nebo stoopeth, their idols were upon the beasts, and upon the cattle: your carriages were heavy loaden;
they are a burden to the weary beast. 2 They stoop, they bow down together; they could not deliver the burden, but themselves are gone into captivity.
C. 3 Hearken unto me, O house of Jacob, and all the remnant of the house of Israel, which are borne by me from the belly, which are carried from the womb: 4 And even to your old age I am he;
and even to hoar hairs will I carry you: I have made, and I will bear;
even I will carry, and will deliver you.
D. 5 To whom will ye liken me, and make me equal, and compare me, that we may be like?
E. 6 They lavish gold out of the bag, and weigh silver in the balance,
and hire a goldsmith; and he maketh it a god: they fall down, yea, they worship. 7 They bear him upon the shoulder, they carry him,
and set him in his place, and he standeth; from his place shall he not remove: yea, one shall cry unto him, yet can he not answer,
nor save him out of his trouble.
E’. 8 Remember this, and shew yourselves men: bring it again to mind, O ye transgressors.
D’. 9 Remember the former things of old: for I am God, and there is none else; I am God, and there is none like me, 10 Declaring the end from the beginning, and from ancient times the things that are not yet done, saying, My counsel shall stand, and I will do all my pleasure: 11 Calling a ravenous bird from the east, the man that executeth my counsel from a far country: yea, I have spoken it, I will also bring it to pass; I have purposed it, I will also do it.
C’. 12 Hearken unto me, ye stouthearted, that are far from righteousness: 13 I bring near my righteousness; it shall not be far off, and my salvation shall not tarry: and I will place salvation in Zion for Israel my glory.
B’. 47:1 Come down, and sit in the dust, O virgin daughter of Babylon, sit on the ground: there is no throne, O daughter of the Chaldeans: for thou shalt no more be called tender and delicate.
2 Take the millstones, and grind meal: uncover thy locks, make bare the leg, uncover the thigh, pass over the rivers. 3 Thy nakedness shall be uncovered, yea, thy shame shall be seen: I will take vengeance, and I will not meet thee as a man.
A’. 4 As for our redeemer, the LORD of hosts is his name,
the Holy One of Israel.