The coming of Jesus as The Christ was such a big deal there was a whole book prophesying it written hundreds of years beforehand by a great prophet whose name even reflected Jesus' name being just like the name for Jesus in Arabic, Isa. This was the book of prophesies of Isaiah. The prophesies hint (ch 8) of the name sign. There were other prophesies by other prophets especially Daniel. Isaiah has a theme prophesying Jesus throughout. Why such a spiritual big deal as to be prophesied like this? Because there is a new way to be saved from the divine wrath and become the kind of person God sees as right and so be saved from the worse judgment of the Final Judgment when all will be judged. This is by loyally sticking with the teachings of this Christ Jesus.
