'Dog' in the Bible

Suddenly he went after her, as an ox goes to the slaughter [not knowing the outcome],Or as one in stocks going to the correction [to be given] to a fool,

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

He that passeth by, and meddleth with strife belonging not to him, is like one that taketh a dog by the ears.