Verses with the word pureness in the Apocrypha (2 verses):

Wisdom of Solomon 7:24
For wisdom is more moving than any motion: she passeth and goeth through all things by reason of her pureness.

Sirach 51:20
I directed my soul unto her, and I found her in pureness: I have had my heart joined with her from the beginning, therefore shall I not be foresaken.