Don’t be afraid of the devil that way, though to see him i’m sure, as we know from the saints especially, he is frightening to see, but what i mean is, even if he can lurk inside our churches, he has no power before God, he wants to scare you, but he can never take from your what really matters, which is your immortal soul,
but honestly, if he is in the Church, don’t let that distress you, because if that be the case, we must understand that it cannot be unless God allows it, and God would not allow it unless there were some good to come from it, though we may not understand it now, it will become clear at some time or another. and in the meantime we just have to trust that God knows what he is doing…although that does not mean we should not be concerned with any evil in the church or outside of it, of course we still must pray on it and do what we can to spread Gods goodness and love, but what i mean to say is, if God allows it, then we should not fear.
though feeling fear and acting on fear are two different things, we cannot always help how we feel, but we can, by the grace of God, keep our actions in check despite our feelings.
so…with that being said, i would say that yes, he is in our church, but he is on a leash, and God is in control.
though perhaps it might be easier to understand if i explain it this way - although it is Gods church, the devil is still prince of darkness, and rules over those who let him, and there are many within the Church today who are very mislead and misguided, who do let the devil in, and who can keep them physically from entering the church?
and spiritually speaking, the devil can go into churches, we know because even in church we can be tempted to sin, and personally, though i don’t expect to be believed, i have heard the devil inside church before, hoofed feet walking on the hard floor…very frightening, but the devil is a coward himself, he tries to scare us because he himself fears us, not because we have any power of our own, but because we have Jesus in us, and He has more power than the devil.
well i dunno if any of that makes sense, but i hope it helps anyways,
take care :]