Although His presence is everywhere, a lot of people do not know God! We often claimed that we do, but our lives are full of limitations!
What does it take or mean to know something or someone? Is it not to be conversant with what is known? To be knowledgeable about the thing as in mastering it, such that any given time, one can manipulate, use, understand and be able to deal with the thing or person!
To know God is to understand God, to be able to reach Him always because you have mastered every avenue to reach Him!
Just because you know His name or have decided to join a religious group doesn’t mean you know God, it simply means you are on the way to knowing Him or probably veiling an evil that is a part of you with religious virtues!