How do you know?

I've been in a quiet season, which is highly unusual for me, and I don't have much to say at the moment. I'm wondering though .....

How do people who spend no time reading their Bibles, no time attending services or participating in any Godly fellowship say God is in charge of their lives?

In seriousness, how do they know it's God (Big G) who is actually the spirit controlling them or their lives? The bible tells us that satan and his demons can appear as angels of light ..... so how can they be so sure?

Kalena Wondering