'Dog' in the Bible

{Abner became very angry} at the words of Ish-Bosheth, and he said, "[Am] I the head of a dog which [is] for Judah today? Do I not continue to show loyal love with the house of Saul your father, to his brothers, and to his friends? I have not let you fall into the hands of David, yet you have {accused me of sin with this woman} today.

Then he did obeisance and said, "What [is] your servant that you have paid attention to the dead dog like me?"

Then Abishai the son of Zeruiah said to the king, "Why should this dead dog curse my lord the king? Please let me go over and take off his head."