'Sharpen' in the Bible

When I sharpen {my flashing sword}, and my hand takes hold [of it] in judgment, {I will take reprisals against my foes}, and my haters I will repay.

If he does not repent, he will sharpen his sword. He has bent his bow and he has {strung} it.

who sharpen their tongue like a sword. They bend [their bow to shoot] their arrows--bitter words,

They sharpen their tongue as [sharp as] a snake's; [the] venom of a viper [is] under their lips. Selah

If the ax is blunt but one does not sharpen its edge, {he must exert more effort}, but the advantage of wisdom [is] it brings success.

Sharpen the arrows, fill the quivers! Yahweh has stirred up the spirit of the kings of the Medes. Because his plan concerning Babylon [is] to destroy it, for that is the vengeance of Yahweh, the vengeance for his temple.