He's not the only one with a new name
Isa 62:1 For Zion's sake I will not keep silent, and for Jerusalem's sake I will not be quiet, until her righteousness goes forth as brightness, and her salvation as a burning torch.
Isa 62:2 The nations shall see your righteousness, and all the kings your glory, and you shall be called by a new name that the mouth of the LORD will give.
Isa 62:3 You shall be a crown of beauty in the hand of the LORD, and a royal diadem in the hand of your God.
Isa 62:4 You shall no more be termed Forsaken, and your land shall no more be termed Desolate, but you shall be called My Delight Is in Her, and your land Married; for the LORD delights in you, and your land shall be married.