"Let no corrupt communication proceed our of your mouth, but that which is good to the use of edifying, that it may minister grace unto the hearers." Ephesians 4:29
This simply makes good sense. The Bible is filled with 'good sense' recommendations and 'must do' commandments. The Bible instructs you how to live and how to have the most success at life, how to advance and how to be a peace in your heart.
It is disturbing though, to see how many Christians really only see the Bible as a good handbook for Grandma. Many today do not believe the the Bible is an instruction manual for how to live a right life. Many today don't see their lifestyle in a right and wrong view. Relativism is the new bible. What's good for you might not be good for me. What's sin for you might not be sin for me.
It is amazing just how far even the (born-again, blood washed, spirit filled, Holy Ghost, Bible believing, sanctified, justified, double dipped Christians) will go to get and do what they want to. Even if it is a direct command from God not to do a particular thing, they will do it and justify it. The problem with this kind of thinking is that it doesn't work. The creator of the universe put everything in order so that some things work with creation's purpose and some things go against it. Does that mean that if you have a different opinion about a particular subject than God that your opinion will work? Never. Not for the long haul. I know, you think you know best. You think that God is old fashioned and needs to be updated and you are willing to take on the task and believe and promote what God condemns in hopes that God will change His mind, or worse, you think God was wrong in the first place. No. You will find, in due time, that the Word of God is sure and sound and right. You, your friends, others with differing views from God's view will not bring God around.
Many really good people, that would give their shirt off their back, and serve the community and otherwise live a decent life, have a false view about God's purpose and direction for mankind. The Bible says "let no corrupt communication proceed out of your mouth," not some, not a little, not for a good joke, not because you grew up with other people who do, not because it will win you a laugh, not because you are mad, not because it doesn't matter anyway. No. Just not. It's not just corrupt communication, it's corrupt living too.
I know, you think that doing this or that is OK because after all "I'm not hurting anybody," "it's my own business." God's economy does not work like that. All of life's decisions are tied to a universal truth. Just as physics and biology and chemistry and aeronautics all work all the time, providing for unbelievers and believers with the same results, so does the Word of God. What God spoke was and is true, always. You can buck it for a little while, a long while or even all your life; you can believe it or not, but God's Word has stood tall from the first word to the last breath taken on earth. You really want to be doing what God is blessing and what works all the time and that is found in the Bible. Simple, straight and easily to be understood truth. That's what makes for a good life. That's what works. That's what's right.