'Sharp' in the Bible

I am surrounded by lions;I lie down with those who devour men.Their teeth are spears and arrows;their tongues are sharp swords.

Look, they spew from their mouths—sharp words from their lips.“For who,” they say, “will hear?”

You have also turned back his sharp swordand have not let him stand in battle.

A warrior’s sharp arrowswith burning charcoal!

They make their tonguesas sharp as a snake’s bite;viper’s venom is under their lips.Selah