Passage
I have declared, and have saved. I have made it heard, and there was no strange one among you. You are my witnesses, saith the Lord, and I am God.
I have declared, and have saved. I have made it heard, and there was no strange one among you. You are my witnesses, saith the Lord, and I am God.
Isaiah 43:10 You are my witnesses, saith the Lord, and my servant whom I have chosen: that you may know, and believe me, and understand that I myself am. Before me there was no God formed, and after me there shall be none.
Isaiah 43:11 I am, I am the Lord: and there is no saviour besides me.
Isaiah 43:12 I have declared, and have saved. I have made it heard, and there was no strange one among you. You are my witnesses, saith the Lord, and I am God.
Isaiah 43:13 And from the beginning I am the same, and there is none that can deliver out of my hind: I will work, and who shall turn it away?
Isaiah 43:14 Thus saith the Lord your redeemer, the Holy One of Israel: For your sake I sent to Babylon, and have brought down all their bars, and the Chaldeans glorying in their ships.
The verse centers on "saved", "declared", "heard", "strange", "witnesses", "saith", and "lord". It is saying that the verse draws attention to "saved" and "declared", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 11's "I am I am the Lord and..." into verse 13's "And from the beginning I am the...", so "saved" 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 "saved" and "declared" with trust shaped by these words, not by a vague optimism outside the passage.