Over the past few years it seems to be more common for me to hear professing Christians use profane language. “Grace”, I suppose.
Matthew 12:34 makes it clear… “the mouth speaks from that which fills the heart”. Therefore, if you have profane words in your mouth, profane things are in your heart. What does a profane heart have to do with Christlikeness? Are we not being conformed to the image of Christ (Romans 8:29)?
Sounds like we may need to reckon ourselves to be dead to sin. Sounds like we may need to connect with who we are in Jesus. Sounds like we need to ignore the old man (who has passed away), and embrace the new creature in Christ that we now are. Sounds like we need to renew our minds. Sounds like we need to yield more to the influence of the Spirit that dwells within us.
The good news is… we don’t have to hold onto bad patterns… we can embrace who we really are…
May it be so.
David Hallum 
Great point, David. Thank you for posting it! Purity matters to Jesus! The heart must be pure to allow us even to see God (Matthew 5:8) and to prepare us for every good work (2 Timothy 2:21).
You got my attention and stimulated a follow-on in my thinking. There is a practical lesson for separating the heart from profane worldly influence in Romans 12:2, where Paul urges that the church be instead transformed by the renewing of its mind or thought. It not just for individual Christians to do, but for the entire body in unity of purpose (plural number in verbs and pronouns, but singular mind).
Discerning the will of God surely must first involve knowing and memorizing His word, but must proceed to applying it in service to God and His people. There is something about obedience, that improves discernment. It is part of the process of making us more like Jesus as we contemplate His glory (2 Cor 3:18).
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