Passage
I haue declared, and I haue saued, and I haue shewed, when there was no strange god among you: therefore you are my witnesses, sayeth the Lord, that I am God.
I haue declared, and I haue saued, and I haue shewed, when there was no strange god among you: therefore you are my witnesses, sayeth the Lord, that I am God.
Isaiah 43:10 You are my witnesses, saith the Lord, and my seruant, whom I haue chosen: therefore yee shall knowe and beleeue me and yee shall vnderstand that I am: before me there was no God formed, neither shall there be after me.
Isaiah 43:11 I, euen I am the Lord, and beside me there is no Sauiour.
Isaiah 43:12 I haue declared, and I haue saued, and I haue shewed, when there was no strange god among you: therefore you are my witnesses, sayeth the Lord, that I am God.
Isaiah 43:13 Yea, before the day was, I am, and there is none that can deliuer out of mine hand: I will doe it, and who shall let it?
Isaiah 43:14 Thus sayeth the Lord your redeemer, the holy one of Israel, For your sake I haue sent to Babel, and brought it downe: they are all fugitiues, and the Chaldeans crie in the shippes.
The verse centers on "haue", "declared", "saued", "shewed", "strange", and "therefore". It is saying that the verse draws attention to "haue" and "declared", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 11's "I euen I am the Lord and..." into verse 13's "Yea before the day was I am...", so "haue" and "declared" belong inside that flow. In Isaiah context, the local focus is the Holy One of Israel, judgment and restoration, the servant of the LORD, and Zion's hope.
A plain takeaway is to answer the verse's own emphasis on "haue" and "declared" with trust shaped by these words, not by a vague optimism outside the passage.