Do your words edify or tear down others, especially those whom you claim to love?
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. Ephesians 4:29 Also take no heed unto all words that are spoken; lest thou hear thy servant curse thee:  For oftentimes also thine own heart knoweth that thou thyself likewise hast cursed others. Ecclesiastes 7:21-22 The words of the wicked are to lie in wait for blood: but the mouth of the upright shall deliver them. Proverbs 12:6 Ye have heard that it was said by them of old time, Thou shalt not kill; and whosoever shall kill shall be in danger of the judgment:  But I say unto you, That whosoever is angry with his brother without a cause shall be in danger of the judgment: and whosoever shall say to his brother, Raca, shall be in danger of the council: but whosoever shall say, Thou fool, shall be in danger of hell fire.  Therefore if thou bring thy gift to the altar, and there rememberest that thy brother hath ought against thee;  Leave there thy gift before the altar, and go thy way; first be reconciled to thy brother, and then come and offer thy gift. Matthew 5:21-24 Be not deceived: evil communications corrupt good manners. 1 Corinthians 15:33 But I say unto you, That every idle word that men shall speak, they shall give account thereof in the day of judgment.  For by thy words thou shalt be justified, and by thy words thou shalt be condemned. Matthew 12:36-37 If any man among you seem to be religious, and bridleth not his tongue, but deceiveth his own heart, this man's religion is vain. James 1:26 But now ye also put off all these; anger, wrath, malice, blasphemy, filthy communication out of your mouth. Colossians 3:8 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.  Behold, we put bits in the horses' mouths, that they may obey us; and we turn about their whole body.  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.  Even so the tongue is a little member, and boasteth great things. Behold, how great a matter a little fire kindleth!  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.  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:  But the tongue can no man tame; it is an unruly evil, full of deadly poison.  Therewith bless we God, even the Father; and therewith curse we men, which are made after the similitude of God.  Out of the same mouth proceedeth blessing and cursing. My brethren, these things ought not so to be.  Doth a fountain send forth at the same place sweet water and bitter?  Can the fig tree, my brethren, bear olive berries? either a vine, figs? so can no fountain both yield salt water and fresh.  Who is a wise man and endued with knowledge among you? let him shew out of a good conversation his works with meekness of wisdom.  But if ye have bitter envying and strife in your hearts, glory not, and lie not against the truth.  This wisdom descendeth not from above, but is earthly, sensual, devilish.  For where envying and strife is , there is confusion and every evil work.  But the wisdom that is from above is first pure, then peaceable, gentle, and easy to be intreated, full of mercy and good fruits, without partiality, and without hypocrisy.  And the fruit of righteousness is sown in peace of them that make peace. James 3:2-18 A good man out of the good treasure of his heart bringeth forth that which is good; and an evil man out of the evil treasure of his heart bringeth forth that which is evil: for of the abundance of the heart his mouth speaketh. Luke 6:45 I said, I will take heed to my ways, that I sin not with my tongue: I will keep my mouth with a bridle, while the wicked is before me.  I was dumb with silence, I held my peace, even from good; and my sorrow was stirred.  My heart was hot within me, while I was musing the fire burned: then spake I with my tongue,  Lord , make me to know mine end, and the measure of my days, what it is; that I may know how frail I am. Psalm 39:1-4 For the sin of their mouth and the words of their lips let them even be taken in their pride: and for cursing and lying which they speak. Psalm 59:12 Set a watch, O Lord , before my mouth; keep the door of my lips. Psalm 141:3 Put away from thee a froward mouth, and perverse lips put far from thee. Proverbs 4:24 The fear of the Lord is to hate evil: pride, and arrogancy, and the evil way, and the froward mouth, do I hate. Proverbs 8:13 The mouth of the just bringeth forth wisdom: but the froward tongue shall be cut out.  The lips of the righteous know what is acceptable: but the mouth of the wicked speaketh frowardness. Proverbs 10:31-32 A soft answer turneth away wrath: but grievous words stir up anger. Proverbs 15:1 Let your speech be alway with grace, seasoned with salt, that ye may know how ye ought to answer every man. Colossians 4:6 By this shall all men know that ye are my disciples, if ye have love one to another. John 13:35 Let the words of my mouth, and the meditation of my heart, be acceptable in thy sight, O Lord , my strength, and my redeemer. Psalm 19:14 Let my mouth be filled with thy praise and with thy honour all the day. Psalm 71:8