Act 19:14  And there were seven sons of one Sceva, a Jew, and chief of the priests, which did so.

Act 19:15  And the evil spirit answered and said, Jesus I know, and Paul I know; but who are ye?

Act 19:16  And the man in whom the evil spirit was leaped on them, and overcame them, and prevailed against them, so that they fled out of that house naked and wounded.

When we battle evil,  it's not about what we know, it is all about who we know.  God bless praying for you today