'Dog's' in the Bible

Then Abner was very angry over the words of Ish-bosheth and said, “Am I a dog’s head that belongs to Judah? Today I show kindness to the house of Saul your father, to his brothers and to his friends, and have not delivered you into the hands of David; and yet today you charge me with a guilt concerning the woman.

“But he who kills an ox is like one who slays a man;He who sacrifices a lamb is like the one who breaks a dog’s neck;He who offers a grain offering is like one who offers swine’s blood;He who burns incense is like the one who blesses an idol.As they have chosen their own ways,And their soul delights in their abominations,