'Sides' in the Bible

All Israel, both foreigners and citizens, together with their elders, officers, and judges, stood on opposite sides of the Ark of the Covenant of the LORD. Half stood in front of Mount Gerizim and half stood in front of Mount Ebal, just as Moses, the LORD's servant had commanded at the first, so that they could bless the people of Israel.

And the limit of the east part is the Jordan. This is the heritage of the children of Benjamin, marked out for their families by these limits on all sides.

Know for a certainty that the LORD your God will no more drive out any of these nations from before you; but they shall be snares and traps unto you, and scourges in your sides, and thorns in your eyes, until ye perish from off this good land which the LORD your God hath given you.