Today's reading Isaiah 41:19 - Isaiah 52:12
"Thus saith the LORD the King of Israel, and his redeemer the LORD of hosts; I am the first, and I am the last; and beside me there is no God." Isaiah 44:6 KJB
The God is our redeemer. We have no one else to look to. No idols, no other nations, no other Gods.
God is proclaiming who he is in these verses (46:10). We will come singing and have everlasting joy (51:10).
It's a grand thing to be a Christian; it's the best thing I know, it's a grand thing to follow Jesus, anywhere and everywhere I go; for it's a grand thing to be a soldier in the army here below; it's the grandest thing to be a christian; it's the best thing I know.