Sharp, etc
Psalm 57:4
My soul is among lions: and I lie even among them that are set on fire, even the sons of men, whose teeth are spears and arrows, and their tongue a sharp sword.
Psalm 59:7
Behold, they belch out with their mouth: swords are in their lips: for who, say they, doth hear?
Proverbs 11:9
An hypocrite with his mouth destroyeth his neighbour: but through knowledge shall the just be delivered.
Proverbs 11:12
He that is void of wisdom despiseth his neighbour: but a man of understanding holdeth his peace.
Proverbs 11:18
The wicked worketh a deceitful work: but to him that soweth righteousness shall be a sure reward.
Proverbs 16:27
An ungodly man diggeth up evil: and in his lips there is as a burning fire.
Proverbs 18:8
The words of a talebearer are as wounds, and they go down into the innermost parts of the belly.
Proverbs 18:21
Death and life are in the power of the tongue: and they that love it shall eat the fruit thereof.
James 3:5-8
5
Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!
6
And the tongue is a fire, a world of iniquity: so is the tongue among our members, that it defileth the whole body, and setteth on fire the course of nature; and it is set on fire of hell.
7
For every kind of beasts, and of birds, and of serpents, and of things in the sea, is tamed, and hath been tamed of mankind:
8
But the tongue can no man tame; it is an unruly evil, full of deadly poison.
arrows
Psalm 7:13
He hath also prepared for him the instruments of death; he ordaineth his arrows against the persecutors.
Psalm 52:5
God shall likewise destroy thee for ever, he shall take thee away, and pluck thee out of thy dwelling place, and root thee out of the land of the living. Selah.
Psalm 140:9
As for the head of those that compass me about, let the mischief of their own lips cover them.
Psalm 140:11
Let not an evil speaker be established in the earth: evil shall hunt the violent man to overthrow him.
Deuteronomy 32:23
I will heap mischiefs upon them; I will spend mine arrows upon them.
Deuteronomy 32:24
They shall be burnt with hunger, and devoured with burning heat, and with bitter destruction: I will also send the teeth of beasts upon them, with the poison of serpents of the dust.
Proverbs 12:22
Lying lips are abomination to the LORD: but they that deal truly are his delight.
Proverbs 19:5
A false witness shall not be unpunished, and he that speaketh lies shall not escape.
Proverbs 19:9
A false witness shall not be unpunished, and he that speaketh lies shall perish.
Revelation 21:8
But the fearful, and unbelieving, and the abominable, and murderers, and whoremongers, and sorcerers, and idolaters, and all liars, shall have their part in the lake which burneth with fire and brimstone: which is the second death.