'Sharp' in the Bible

Your arrows [are] sharp; peoples fall under you in the midst of the king's enemies.

Your tongue plans destruction, like a sharp razor, working deceit.

My soul [is] among lions. I lie down [among those who] devour-- the children of humankind whose teeth [are] spears and arrows and whose tongues [are] sharp swords.

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