why does the pope wear white?

Answer 1

White is the color of purity.

Which is why when you see a Christ preaching and wearing a robe, or the Crucifixion, or rising from the dead, Christ is always wearing white.

The same reasoning applies to the white dove making its appearances throughout the bible.


Rob

Answer 2

In addition to the answer above, the each role in the Church hierarchy has its own traditional color:
+ The Pope wears white
+ Cardinals wear red
+ Bishops wear purple
+ Priests and deacons wear black

With love in Christ.