Rev 12:3 And there appeared another wonder in heaven; and behold a great red dragon, having seven heads and ten horns, and seven crowns upon his heads.
So, forgive quickly, and give the devil no opportunity.
Rev 17:16 And the ten horns which thou sawest upon the beast, these shall hate the whore, and shall make her desolate and naked, and shall eat her flesh, and burn her with fire.
Who is the one who very intentionally uses words to do harm and cause damage? One of the ways we give opportunity to the devil is by holding on to anger and unforgiveness.
We have seen several scriptures stating, Sit thou at my right hand, until I make thine enemies thy footstool.
That is if there is any area that is not treated, the whole is still undermined.