In answer to your OP, the following from The Pensees, should be sufficient. It is, then, true that everything teaches man his condition, but he must understand this well. For it is not true that all reveals God, and it is not true that all conceals God. But it is at the same time true that He hides Himself from those who tempt Him, and that He reveals Himself to those who seek Him, because men are both unworthy and capable of God; unworthy by their corruption, capable by their original nature.
In my words, God exists, individuals must choose to believe that or not.