In Exodus 4:6, this signifies confirmation of truths profaned. (Arcana Coelestia 6963)

In 2 Samuel 23:20, this signifies the state of the man who is in faith without charity, or in whom charity and faith are not conjoined. (New Jerusalem and Its Heavenly Doctrine 114)

'Snow' signifies truth in extremes, because it is water, which signifies the truths of faith. It also relates to truth because it is white. 'Snow,' or 'ice,' corresponds to the state of people who are in truth without good, or faith without charity.

(Reference: Apocalypse Revealed 47; Arcana Coelestia 8459)