"Oysters Weren't Meant to be Eaten, but to Purify the Oceans"

Picture from Sustainable Gibraltar:

King of kings' Bible - Deuteronomy (5th Book of The Law) 14:9 These ye shall eat of all that [are] in the waters: all that have fins and scales shall ye eat:
14:10 And whatsoever hath not fins and scales ye may not eat; it [is] unclean unto you.