We need to be careful what we say as Christians! We are being watched by others and we need to set the example before them on how to speak holy. Let us reflect on our speech and repent of any wrong speech and look into our hearts to make sure we change the root of the problem for the bible says:
Matthew 12:34 O generation of vipers, how can ye, being evil, speak good things? for out of the abundance of the heart the mouth speaketh.
We need to make sure our hearts are pure in order to cleanse our Speech.