In Psalm 2, God is speaking to His Son. His Son, the one born in the manger. His Son, the one whose birth we celebrate at Christmas. His Son, born to die. His Son, whose resurrection was God's stamp of acceptance that His death truly paid the price for our sins. His Son, to Whom has been given all the nations as an inheritance.
As Abraham Kuyper said, "There is no square inch of earth over which the Lord Jesus does not cry, 'Mine.'" There are no God-forsaken places. Not here, not there, not anywhere.
Hallelujah. That makes for a very merry Christmas indeed, as we commit afresh to telling His story where it is old, and where it is new.