that

Proverbs 25:18
Like a club or sword or sharp arrow is a man who bears false witness against his neighbor.

Psalm 52:2
Your tongue devises destruction like a sharpened razor, O worker of deceit.

Psalm 57:4
My soul is among the lions; I lie down with ravenous beasts whose teeth are spears and arrows, whose tongues are sharp swords.

Psalm 59:7
See what they spew from their mouths--sharp words from their lips: "For who can hear us?"

Psalm 64:3
who sharpen their tongues like swords and aim their bitter words like arrows,

James 3:6-8
The tongue also is a fire, a world of wickedness among the parts of the body. It pollutes the whole person, sets the course of his life on fire, and is itself set on fire by hell. . . .

like

Revelation 1:16
He held in His right hand seven stars, and a sharp double-edged sword came from His mouth. His face was like the sun shining at its brightest.

but

Proverbs 10:20, 21
The tongue of the righteous is choice silver, but the heart of the wicked has little worth. . . .

Proverbs 13:17
A wicked messenger falls into trouble, but a faithful envoy brings healing.

Proverbs 15:7
The lips of the wise spread knowledge, but not so the hearts of fools.

Proverbs 16:24
Pleasant words are a honeycomb, sweet to the soul and healing to the bones.

Daniel 11:33
Those with insight will instruct many, though for a time they will fall by sword and flame or be captured or plundered.

Revelation 22:2
down the middle of the main street of the city. On either side of the river stood a tree of life, producing twelve kinds of fruit and yielding a fresh crop for each month. And the leaves of the tree are for the healing of the nations.