Kings I 24:15

15 And now after whom dost thou come forth, O king of Israel? After whom dost thou pursue? After a dead dog, and after a flea?

Kings I 24:15 In-Context

13 The Lord judge between me and thee, and the Lord requite thee on thyself: but my hand shall not be upon thee.
14 As the old proverb says, Transgression will proceed from the wicked ones: but my hand shall not be upon thee.
15 And now after whom dost thou come forth, O king of Israel? After whom dost thou pursue? After a dead dog, and after a flea?
16 The Lord be judge and umpire between me and thee, the Lord look upon and judge my cause, and rescue me out of thy hand.
17 And it came to pass when David had finished speaking these words to Saul, that Saul said, this thy voice, Son David? And Saul lifted up his voice, and wept.

The Brenton translation of the Septuagint is in the public domain.