Isaiah 62:2

And the Gentiles shall see thy righteousness, and all kings thy glory: and thou shalt be called by a new name, which the mouth of the LORD shall name.

Ver. 2. And the Gentiles shall see thy righteousness.] The prophet here very artificially turneth his speech to the Church herself, as if he would pronounce his panegyric in her presence; and presently celebrateth her dignity and happiness herein, that the Gentiles should worship her, and be joined unto her. Some read it, "And the Gentiles shall see thy righteous One," - i.e., Christ, who came from the Jews, was preached to the Gentiles, believed on in the world, received up to glory. 1Ti 3:16

And thou shalt be called by a new name,] viz., Hephzibah, i.e., My darling; and Beulah, i.e., A married woman. Isa 62:4 There are that by this new name will have to be understood the name of sons and daughters of the Almighty. Revelation 2:17 2Co 6:18 Others the name of the Church Catholic. And others, again, the honourable name of Christians, which yet is at this day in Italy and at Rome a name of reproach, and usually abused to signify a fool or a dolt, as Dr Fulk proveth out of their own authors. a

a Fulk, Rhem. Test. on Acts xi.