Snow

Which are blackish by reason of the ice, and wherein the snow is hid:

If I wash myself with snow water, and make my hands never so clean;

Purge me with hyssop, and I shall be clean: wash me, and I shall be whiter than snow.

Come now, and let us reason together, saith the LORD: though your sins be as scarlet, they shall be as white as snow; though they be red like crimson, they shall be as wool.

Her Nazarites were purer than snow, they were whiter than milk, they were more ruddy in body than rubies, their polishing was of sapphire: