'Purging' in the Bible

When thou hast ended purging it, thou shalt present a young bullock without blemish, and a ram out of the flock without blemish;

because it does not enter into his heart but into his belly, and goes out into the draught, purging all meats?

for he with whom these things are not present is blind, short-sighted, and has forgotten the purging of his former sins.