“Let no corrupt communication proceed out of your mouth, but that which is good to the use of edifying, that it may minister grace to the hearers. And grieve not the holy Spirit of God, whereby ye are sealed to the day of redemption. Let all bitterness, and wrath, and anger, and clamor, and evil-speaking, be put away from you, with all malice: And be ye kind one to another, tender-hearted, forgiving one another, even as God for Christ’s sake hath forgiven you.” (Ephesians 4:29-32, Webster)

Starting out we see here that Paul proclaims the fact that the utterance of evil or worthless words is repugnant to the Holiness of the Spirit. This should have been translated: “In Whom you are sealed unto the Day of Redemption.” The Holy Spirit is Himself the Seal God has placed on us.
Anyone as a true Believer puts His Faith in Christ and keeps his Faith in Christ because of the results of the Cross which gave and gives the Holy Spirit latitude to work on our behalf then, and, these evil things can then be “put away” from our lives.
As Christ certainly looked ahead in time, even before the foundation of the world, and forgave, so should we each be quick to forgive. Christ’s forgiveness of us is to always be the basis of our forgiveness of others.

From the writer, my feeling is:
Look, if someone’s just going through the motions and calling it faith, they need to step aside and get honest with themselves. Following Christ isn’t about making excuses so you can keep doing whatever sin suits you or padding your own comfort. It’s about letting Him actually change you. We’ve all been forgiven more than we deserve, so we ought to quit hanging on to junk like bitterness, alcohol, drugs legal or not, hypocrisy, and start living like that forgiveness and love from Christ means something.