'Edge' in the Bible

And the Sabeans fell upon them, and took them away; yea, they have slain the servants with the edge of the sword; and I only am escaped alone to tell thee.

While he was yet speaking, there came also another, and said, The Chaldeans made out three bands, and fell upon the camels, and have carried them away, yea, and slain the servants with the edge of the sword; and I only am escaped alone to tell thee.

And he took a broken bit of a pot, and, seated in the dust, was rubbing himself with the sharp edge of it.

where it seizes the edge of the earth and shakes the wicked out of it?