'Heels' in the Bible

“Dan shall be a serpent in the way,A horned snake in the path,That bites the horse’s heels,So that his rider falls backward.

“As for Gad, raiders shall raid him,But he will raid at their heels.

“And the princes of Issachar were with Deborah;As was Issachar, so was Barak;Into the valley they rushed at his heels;Among the divisions of ReubenThere were great resolves of heart.

“If you say in your heart,‘Why have these things happened to me?’Because of the magnitude of your iniquityYour skirts have been removedAnd your heels have been exposed.

But he will gain control over the hidden treasures of gold and silver and over all the precious things of Egypt; and Libyans and Ethiopians will follow at his heels.