Often as part of the Discipleship pathway that I put people in Nowra City Church on, I get them to read through Proverbs and highlight all the verse on words. I think the words we speak have more power than we realise. To save you time, I have assembled the relevant passages.
First though a couple of other biblical verses to inspire you on the power of our words and the importance that we are godly with our speech.
Psalm 19:14
May the words of my mouth and the meditation of my heart be pleasing in your sight,
O LORD, my Rock and my Redeemer.
Eph 4:29-31
Let no corrupt word proceed out of your mouth, but what is good for necessary edification, that it may impart grace to the hearers. 30 And do not grieve the Holy Spirit of God, by whom you were sealed for the day of redemption. 31 Let all bitterness, wrath, anger, clamor, and evil speaking be put away from you, with all malice.
Psalm 141:3
Post a guard at my mouth, God, set a watch at the door of my lips.
Here are the verse from Proverbs:-
Proverbs 4:24
Put away from you a deceitful mouth,
And put perverse lips far from you.
Proverbs 6:17
These six things the Lord hates,
Yes, seven are an abomination to Him:
17 A proud look,
A lying tongue,
Hands that shed innocent blood,
18 A heart that devises wicked plans,
Feet that are swift in running to evil,
19 A false witness who speaks lies,
And one who sows discord among brethren.
Proverbs 8:8
All the words of my mouth are with righteousness;
Nothing crooked or perverse is in them.
Proverbs 8:13
The fear of the Lord is to hate evil;
Pride and arrogance and the evil way
And the perverse mouth I hate.
Proverbs 10:11
The mouth of the righteous is a well of life,
But violence covers the mouth of the wicked.
Proverbs 10:19
In the multitude of words sin is not lacking,
But he who restrains his lips is wise.
Proverbs 10:21
The lips of the righteous feed many,
But fools die for lack of wisdom.
Proverbs 10:30-31
The righteous will never be removed,
But the wicked will not inhabit the earth.
31 The mouth of the righteous brings forth wisdom,
But the perverse tongue will be cut out.
Proverbs 11:9
The hypocrite with his mouth destroys his neighbor,
But through knowledge the righteous will be delivered.
Proverbs 11:13
A talebearer reveals secrets,
But he who is of a faithful spirit conceals a matter.
Proverbs 12:13-14
The wicked is ensnared by the transgression of his lips,
But the righteous will come through trouble.
14 A man will be satisfied with good by the fruit of his mouth,
And the recompense of a man’s hands will be rendered to him.
Proverbs 12:18-19
There is one who speaks like the piercings of a sword,
But the tongue of the wise promotes health.
19 The truthful lip shall be established forever,
But a lying tongue is but for a moment.
Proverbs 12:22
Lying lips are an abomination to the Lord,
But those who deal truthfully are His delight.
Proverbs 13:2-3
A man shall eat well by the fruit of his mouth,
But the soul of the unfaithful feeds on violence.
3 He who guards his mouth preserves his life,
But he who opens wide his lips shall have destruction.
Proverbs 15:14
The heart of him who has understanding seeks knowledge,
But the mouth of fools feeds on foolishness.
Proverbs 17:5
He who mocks the poor reproaches his Maker;
He who is glad at calamity will not go unpunished.
Proverbs 17:7
Excellent speech is not becoming to a fool,
Much less lying lips to a prince.
Proverbs 17:9
He who covers a transgression seeks love,
But he who repeats a matter separates friends.
Proverbs 17:20
He who has a deceitful heart finds no good,
And he who has a perverse tongue falls into evil.
Proverbs 17:27
He who has knowledge spares his words,
And a man of understanding is of a calm spirit.
Proverbs 17:28
Even a fool is counted wise when he holds his peace;
When he shuts his lips, he is considered perceptive.
Proverbs 18:4
The words of a man’s mouth are deep waters;
The wellspring of wisdom is a flowing brook.
Proverbs 18:6-8
A fool’s lips enter into contention,
And his mouth calls for blows.
7 A fool’s mouth is his destruction,
And his lips are the snare of his soul.
8 The words of a talebearer are like tasty trifles,[a]
And they go down into the inmost body.
Proverbs 18:20-21
A man’s stomach shall be satisfied from the fruit of his mouth;
From the produce of his lips he shall be filled.
Death and life are in the power of the tongue,
And those who love it will eat its fruit.
Proverbs 18:23
The poor man uses entreaties,
But the rich answers roughly.
Proverbs 19:1
Better is the poor who walks in his integrity
Than one who is perverse in his lips, and is a fool.
Proverbs 19:5
A false witness will not go unpunished,
And he who speaks lies will not escape.
Proverbs 19:9
A false witness will not go unpunished,
And he who speaks lies shall perish.
Proverbs 19:28
A disreputable witness scorns justice,
And the mouth of the wicked devours iniquity.
Proverbs 19:29
Judgments are prepared for scoffers,
And beatings for the backs of fools.
Proverbs 21:23
Whoever guards his mouth and tongue
Keeps his soul from troubles.
Proverbs 25:11
A word fitly spoken is like apples of gold
In settings of silver.
Proverbs 28:23
He who rebukes a man will find more favor afterward
Than he who flatters with the tongue.
Proverbs 31:26
She opens her mouth with wisdom,
And on her tongue is the law of kindness.
I finish this post with the following story
There is a story of a woman in a village who maliciously gossiped about another lady and her family in the village. One day she found out that she was wrong about this lady and her family and had a change of heart. She went to the village’s wise man and asked how she could take back all the wrong she had done. The wise man told her to go home and kill her chickens and pluck there feathers and put them into a bag. After this she was to go back and see the wise man again, but on her way back she was to scatter all the feathers she had plucked from the chickens.
The lady did as she was told. When she got back to the man, he told her, ” now go back and pick up all the feathers that you have scattered. ” The woman was astonished at such a command and said, ” By now the wind has carried the feathers through out the village and beyond.” The wise man then told Her, And so it is with your careless words. They are like the feathers scattered in the wind. You can not retrieve them. ” With that the woman with a broken heart because of the words she had spoken went her way, determined from that day forward to Watch her words.
peterpilt 
Rich, excellent words–thank you for the sharing and the ending story..I will download and share with my family for Mother’s Day and keep it for my sustence as moved by the Holy Spirit to read it and be reminded.
Malo vakalevu nai Talatala Qase.
Leba.