Proverbs 15:4

A gentle tongue is a tree of life, but deceit in it crushes the spirit.

Proverbs 3:18

She is a tree of life to those who lay hold of her, and those who hold on to her are blessed

Proverbs 12:18

There is one who speaks rashly like the piercing of a sword, but the tongue of the wise heals.

Genesis 3:22-24

The LORD God said, "Behold, the man has become like one of us, knowing good and evil. Now, lest he put forth his hand, and also take of the tree of life, and eat, and live forever..."

Psalm 52:2-4

Your tongue plots destruction, like a sharp razor, working deceitfully.

Psalm 109:22

for I am poor and needy. My heart is wounded within me.

Proverbs 16:24

Pleasant words are a honeycomb, sweet to the soul, and health to the bones.

Proverbs 18:8

The words of a gossip are like dainty morsels: they go down into a person's innermost parts.

Proverbs 18:14

A man's spirit will sustain him in sickness, but a crushed spirit, who can bear?

Proverbs 26:22

The words of a whisperer are as dainty morsels, they go down into the innermost parts.

Malachi 4:2

But to you who fear my name shall the sun of righteousness arise with healing in its wings. You will go out, and leap like calves of the stall.

1 Timothy 6:3

If anyone teaches a different doctrine, and does not consent to sound words, the words of our Lord Jesus Christ, and to the doctrine which is according to godliness,

Revelation 2:7

He who has an ear, let him hear what the Spirit says to the churches. To him who overcomes I will give to eat of the tree of life, which is in the Paradise of God.

Treasury of Scripture Knowledge

Summary

A wholesome tongue is a tree of life: but perverseness therein is a breach in the spirit.

Bible References

A wholesome

Proverbs 12:18
There is one who speaks rashly like the piercing of a sword, but the tongue of the wise heals.
Proverbs 16:24
Pleasant words are a honeycomb, sweet to the soul, and health to the bones.
Malachi 4:2
But to you who fear my name shall the sun of righteousness arise with healing in its wings. You will go out, and leap like calves of the stall.

A tree

Proverbs 3:18
She is a tree of life to those who lay hold of her, and those who hold on to her are blessed
Genesis 3:22
The LORD God said, "Behold, the man has become like one of us, knowing good and evil. Now, lest he put forth his hand, and also take of the tree of life, and eat, and live forever..."
1 Timothy 6:3
If anyone teaches a different doctrine, and does not consent to sound words, the words of our Lord Jesus Christ, and to the doctrine which is according to godliness,
Revelation 2:7
He who has an ear, let him hear what the Spirit says to the churches. To him who overcomes I will give to eat of the tree of life, which is in the Paradise of God.

A breach

Proverbs 18:8
The words of a gossip are like dainty morsels: they go down into a person's innermost parts.
Proverbs 26:22
The words of a whisperer are as dainty morsels, they go down into the innermost parts.
Psalm 52:2
Your tongue plots destruction, like a sharp razor, working deceitfully.
Psalm 109:22
for I am poor and needy. My heart is wounded within me.