Question: what does the bible say about a dog returning to its vomit

title: As a dog returns to his vomit, so a fool repeats his folly
text: `` As a dog returns to his vomit , so a fool repeats his folly '' is an aphorism which appears in the Book of Proverbs in the Bible -- Proverbs 26 : 11 ( Hebrew : כְּ֭כֶלֶב שָׁ֣ב עַל ־ קֵאֹ֑ו כְּ֝סִ֗יל שֹׁונֶ֥ה בְאִוַּלְתֹּֽו ‎ Kəḵeleḇ šāḇ ' al - qê'ōw ; kəsîl , šōwneh ḇə'iwwaltōw . ) , also partially quoted in the New Testament , 2 Peter 2 : 22 . It means that fools are stubbornly inflexible and this is illustrated with the repulsive simile of the dog that eats its vomit again , even though this may be poisonous . Dogs were considered unclean in Biblical times as they were commonly scavengers of the dead and they appear in the Bible as repugnant creatures , symbolising evil . The reference to vomit indicates excessive indulgence and so also symbolises revulsion . 

Answer: answer: `` As a dog returns to his vomit , so a fool repeats his folly '' is an aphorism which appears in the Book of Proverbs in the Bible.
The reference to vomit indicates excessive indulgence and so also symbolises revulsion .