Isaiah 45 & 46:
He will bring it to pass
Over and over in these two chapters God says, “I am the Lord, and there is no other.” One of the ways He has confirmed that fact to us is through the fulfillment of prophecy.
God through the prophet Isaiah declared that Cyrus would end the 70 years of captivity and allow the people to return to Jerusalem to rebuild the temple. About 150 years later that’s exactly what happened.
There are many prophecies which have already been fulfilled and others which are yet to be fulfilled. But, eventually, every single one will come to pass:
“… Indeed I have spoken it; I will also bring it to pass. I have purposed it; I will also do it” (46.11).