“For where two or three are gathered together in my name, there am I in the midst of them.”
Where two or three are gathered in God’s name, talking about Him and things pertaining to His kingdom, The Holy Spirit is right there in their midst.
So also, where two or more people are gathered together in the name of backbiting, false witnessing, fornicating, committing adultery, witchcraft, wizardry, cultism, check Gal 5:19-21 for the rest, the Devil is right there in their midst.
Take Heed! (Watch Out!)