Passage
Ye are my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me.
Ye are my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me.
Isaiah 43:8 Bring forth the blind people that have eyes, and the deaf that have ears.
Isaiah 43:9 Let all the nations be gathered together, and let the people be assembled: who among them can declare this, and shew us former things? let them bring forth their witnesses, that they may be justified: or let them hear, and say, It is truth.
Isaiah 43:10 Ye are my witnesses, saith the LORD, and my servant whom I have chosen: that ye may know and believe me, and understand that I am he: before me there was no God formed, neither shall there be after me.
Isaiah 43:11 I, even I, am the LORD; and beside me there is no saviour.
Isaiah 43:12 I have declared, and have saved, and I have shewed, when there was no strange god among you: therefore ye are my witnesses, saith the LORD, that I am God.
The verse centers on "witnesses", "saith", "lord", "servant", "chosen", "believe", "understand", and "before". It is saying that the verse draws attention to "witnesses" and "saith", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 9's "Let all the nations be gathered together..." into verse 11's "I even I am the LORD and...", so "witnesses" and "saith" 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 "witnesses" and "saith" with trust shaped by these words, not by a vague optimism outside the passage.