Isa 60:3

60:3 nations shall come. See 11:1; 42:16; 49:6. The prophecy has been fulfilled day by day since the coming of the gospel (Acts 9:15; 11:18).

kings to the brightness. They come to Christ (42:6; 49:6). The wise men who came to see Jesus were Gentiles if not “kings” in some sense.