The people of the world either do not know God, or believe in him falsely, or know about the true God (the God of Abraham and the God who is Christ). Among those who know about him, many get to know him personally. It's fair to say that those who claim that they know him are at various stages of rebellion against God, for few become totally obedient. As long as one is not in complete union with God yet, he is, strictly speaking, still a rebel. Dare we say that life is all about whether we submit to God or not?