'Blade' in the Bible

Both the great and small will die in this land. They will not be buried, and they will not mourn for them, and no one will cut himself with a blade, and no one will shave himself for them.

Baldness has come upon Gaza, Ashkelon is destroyed. O remnant of their valley, {how long} will you cut yourself with a blade?

Let the planter of seed be cut off from Babylon, and everyone using the curved blade at the time of the grain-cutting: for fear of the cruel sword, everyone will be turned to his people, everyone will go in flight to his land.