When it comes to the question of the existence of God, here are three of the positions people might take:
Theist - someone who believes that God exists. Theists do not necessarily believe they can prove God's existence.
Agnostic - someone who holds the view that it is impossible to know the truth about some things, such as God's existence or the afterlifeLife after death..
Atheist - someone who holds the view that there is no God. Atheists do not necessarily believe they can prove atheism to be true.