It says in Proverbs 4:19 The way of the wicked is as darkness: they know not at what they stumble. v20 My son, attend to my words; incline thine ear unto my sayings. v21 Let them not depart from thine eyes; keep them in the midst of thine heart. v22 For they are life unto those that find them, and health to all their flesh. v23 Keep thy heart with all diligence; for out of it are the issues of life. v24 Put away from thee a froward mouth, and perverse lips put far from thee. v25 Let thine eyes look right on, and let thine eyelids look straight before thee. v26 Ponder the path of thy feet, and let all thy ways be established. v27 Turn not to the right hand nor to the left: remove thy foot from evil.
It is important for us to be careful of what and how we speak at all times, but It is just as important for us to consider why we say and do the things we do.
Proverbs 4:23 says, Keep thy heart with all diligence; for out of it are the issues of life.
The things we say and do comes from what is really in our hearts. If we spend time submitting our thoughts and seeking God's agenda, (not our own), we can live a life that honors the relationship we have with Christ.