Genesis 49:18

16“Dan will judge his people, as one of the tribes of Israel.

17Dan will be a serpent on the trail, an adder in the path, that bites the horse’s heels, so that his rider falls backward.

18I have waited for your salvation, LORD.

19“A troop will press on Gad, but he will press on their heel.

20“Asher’s food will be rich. He will produce royal dainties.