2 Samuel 9:8

“After whom has the king of Israel come out? Whom are you pursuing? After a dead dog, after a single flea?

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 lovingkindness 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.

Now David had passed a little beyond the summit, and behold, Ziba the young man of Mephibosheth met him with a couple of saddled donkeys, and on them were two hundred loaves of bread, one hundred clusters of raisins, one hundred summer fruits, and a jug of wine.

Then Abishai the son of Zeruiah said to the king, “Why should this dead dog curse my lord the king? Let me pass over now and remove his head.”

Now Mephibosheth the son of Saul had come down to meet the king; and he had not done anything for his feet, nor done anything for his mustache, nor washed his clothes, from the day the king departed until the day he came home in peace.

Then Hazael said, “But what is your servant, who is but a dog, that he should do this great thing?” And Elisha answered, “Yahweh has shown me that you will be king over Aram.”