http://bible.com/116/isa.29.13.nlt And so the Lord says, “These people say they are mine. They honor me with their lips, but their hearts are far from me. And their worship of me is nothing but man-made rules learned by rote.
Remember, true Christians are ambassadors for Christ and the Kingdom of God. Everything we say and do reflects on Jesus Christ.
Therefore, everything we say and do must be to the glory of God.