'Edge' in the Bible

And afterward, saith Jehovah, I will deliver Zedekiah king of Judah, and his servants, and the people, even such as are left in this city from the pestilence, from the sword, and from the famine, into the hand of Nebuchadrezzar king of Babylon, and into the hand of their enemies, and into the hand of those that seek their life: and he shall smite them with the edge of the sword; he shall not spare them, neither have pity, nor have mercy.

In those days they shall say no more, The fathers have eaten sour grapes, and the children's teeth are set on edge.

But every one shall die for his own iniquity: every man that eateth the sour grapes, his teeth shall be set on edge.