THE HOLY BIBLE Authorized King James

Proverbs (Author Solomon)

26:11As a dog returneth to his vomit, so a fool returneth to his folly.

Matthew (Author Matthew)

7:6Give not that which is holy unto the dogs, neither cast ye your pearls before swine, lest they trample them under their feet, and turn again and rend you.

2 Peter (Author Peter)

2:22But it is happened unto them according to the true proverb, The dog is turned to his own vomit again; and the sow that was washed to her wallowing in the mire.

Original from The Bible Foundation - They claim public domain status for their original text.