'Backs' in the Bible

For our fathers have trespassed, and done that which was evil in the eyes of the LORD our God, and have forsaken him, and have turned away their faces from the habitation of the LORD, and turned their backs.

And he said to the Levites, the teachers of all Israel, who were holy to the Lord, See, the holy ark is in the house which Solomon, the son of David, king of Israel, made; it will no longer have to be transported on your backs: now be the servants of the Lord your God and his people Israel,