'Dirty' in the Bible

For this reason, putting away all dirty behaviour and the overweight of evil, take into your souls without pride the word which, being planted there, is able to give you salvation.

For if a man comes into your Synagogue in fair clothing and with a gold ring, and a poor man comes in with dirty clothing,

They are an example of that true saying, The dog has gone back to the food it had put out, and the pig which had been washed to its rolling in the dirty earth.