'Edge' in the Bible

Then the Sabeans {attacked}, and they took them, and they slew the servants {by the edge of the sword}. But I escaped, [even] I alone, to tell you."

While this one was still speaking, {another} came and said, "The Chaldeans formed three divisions, and they made a raid on the camels, and they carried them away, and they struck your servants {by the edge of the sword}, but I escaped, [even] I alone, to tell you."