Other cultures as we go to them, or they come to us, have much to teach us in our understanding of the Gospel, and about the rich variety of expression in worship. On the Last Day, the Great Day, people from all 'tongues, tribes and nations' (i.e. all people from all cultures) will enter the Eternal City, their culture refined and renewed, their kingdoms - all the kingdoms of this world, having become the Kingdom of our Lord and of His Christ.