'Backs' in the Bible

O Lord, what shall I say, when Israel turneth their backs before their enemies!

Therefore the children of Israel could not stand before their enemies, but turned their backs before their enemies, because they were accursed: neither will I be with you any more, except ye destroy the accursed from among you.

And put old stitched-up shoes on their feet, and old clothing on their backs; and all the food they had with them was dry and broken up.

know for certain that the LORD your God will not continue to drive out these nations ahead of you. Instead, they will be a snare and a trap for you, a whip to your backs, and thorns in your eyes, until you perish from this good land that the LORD your God has given you.