'Backs' in the Bible

Oh sinful nation,people weighed down with iniquity,brood of evildoers,depraved children!They have abandoned the Lord;they have despised the Holy One of Israel;they have turned their backs on Him.

An oracle about the animals of the Negev:Through a land of trouble and distress,of lioness and lion,of viper and flying serpent,they carry their wealth on the backs of donkeysand their treasures on the humps of camels,to a people who will not help them.