The word Religion actually translates into fear of God. Many fear what they can't see or can't touch and feel.
FEAR - as in worship / respect as you do your earthly parents. We fear their scorn and punishment as they have authority over us. So too even more does the Father of all creation, God.
His children are often in rebellion & disobedience and hell awaits for their is no room for rebellion in the new earth to come.