29 Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers.
Colossians 4:5 ¶ Walk in wisdom toward them that are without, redeeming the time. 6 Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man.
I don’t need to go into vulgar speech here or even “Christian cussin’”. You can easily go overboard banning, “Golly,” because it stands for God and we all know what common, vulgar names are for body parts. It’s common sense.
Your speech should be uplifting, encouraging, edifying, and glorifying to God, ministering grace to the hearer. It should not be vulgar, violent, selfish, or frivolous.
Matthew 12:36 But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.
Select your words carefully, Christian. Understand that a word can make a huge difference in a hurting person’s life or in the life of a child. If you have to say, “I don’t want you to take this the wrong way, but…” then you probably shouldn’t say what comes next. If you have to say, “I don’t mean to hurt your feelings, but…” then you probably should keep quiet.
I would add to be careful of speech that can be taken different ways, in a good way and a not so good way. Say exactly what you mean and mean exactly what you say. Be kind. Be thoughtful.
Corrupt communication can be flattery and it can be blasphemous.
Psalm 5:9 For there is no faithfulness in their mouth; their inward part is very wickedness; their throat is an open sepulchre; they flatter with their tongue.
Psalm 52:2 Thy tongue deviseth mischiefs; like a sharp razor, working deceitfully.
Psalm 73:8 They are corrupt, and speak wickedly concerning oppression: they speak loftily.
9 They set their mouth against the heavens, and their tongue walketh through the earth.
It is very common to hear the word of God preached in a corrupt manner, either being watered down like wine that is sold diluted and made of little value.
2Corinthians 2:17 For we are not as many, which corrupt the word of God: but as of sincerity, but as of God, in the sight of God speak we in Christ.
It can be twisted in a manner to deceive.
2Corinthians 4:2 But have renounced the hidden things of dishonesty, not walking in craftiness, nor handling the word of God deceitfully; but by manifestation of the truth commending ourselves to every man’s conscience in the sight of God.
Our tongue is a hard thing to control at times.
James 3:1 ¶ My brethren, be not many masters, knowing that we shall receive the greater condemnation. 2 For in many things we offend all. If any man offend not in word, the same is a perfect man, and able also to bridle the whole body. 3 Behold, we put bits in the horses’ mouths, that they may obey us; and we turn about their whole body. 4 Behold also the ships, which though they be so great, and are driven of fierce winds, yet are they turned about with a very small helm, whithersoever the governor listeth. 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. 9 Therewith bless we God, even the Father; and therewith curse we men, which are made after the similitude of God. 10 Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be. 11 Doth a fountain send forth at the same place sweet water and bitter? 12 Can the fig tree, my brethren, bear olive berries? either a vine, figs? so can no fountain both yield salt water and fresh.
Essentially, we must guard our speech for as the universe was created by a spoken word so nations are brought down and raised up, people are encouraged or destroyed, and God is exalted or treated with contempt by words.What effect on the hearer will be the next thing out of your mouth?