God calls everyone, from all the ends of the earth, to turn and be saved.
This might be called the central message of Second Isaiah refers chapters 40-55 of the book of Isaiah. This work was likely written during Israel's exile in Babylon (597-538 B.C.E.). Second Isaiah includes poetic passages of hope as well as descriptions of the Suffering Servant. More. “The LORD is God, and there is no other” turns out to be not merely an abstract theological assertion, but a gracious promise: since God alone is Lord, all can turn to God for deliverance and Salvation can mean saved from something (deliverance) or for something (redemption). Paul preached that salvation comes through the death of Christ on the cross which redeemed sinners from death and for a grace-filled life. More.
God is the savior of Israel, of course; so, throughout, this book makes clear that the exiles will be brought back to Jerusalem from all the ends of the earth (see 43:4-7; 49:8-12; 60:4-10). But some passages in Isaiah, son of Amoz, who prophesied in Jerusalem, is included among the prophets of the eighth century B.C.E. (along with Amos, Hosea, and Micah)--preachers who boldly proclaimed God's word of judgment against the economic, social, and religious disorders of their time. More, like this one, make clear that God summons and saves the nations as well. From the beginning, God chose Israel in order to bless the nations (Genesis 12:1-3), and now God will use the fact of Israel’s dispersal among the nations to reach out to the nations for their good.