And Nahash the Ammonite answered them, On this condition will I make a covenant with you, that I may thrust out all your right eyes, and lay it for a reproach upon all Israel. I may thrust out all your right eves - This cruel condition would serve at once as a badge of their slavery, and a means of incapacitating them from being effective warriors. Theodoret observes, "He who opposes his shield to the enemy with his left hand, thereby hides his left eye, and looks at his enemy with his right eye; he therefore who plucks out that right eye makes men useless in war." Josephus gives the same reason.
Related Commentaries of 1 Samuel 11:2
1 Samuel 11:2
2 And Nahash the Ammonite answered them, On this condition will I make a covenant with you, that I may thrust out all your right eyes, and lay it for a reproach upon all Israel.