Acts 8:29-31

Then the [Holy] Spirit said to Philip, Go forward and join yourself to this chariot. Accordingly Philip, running up to him, heard [the man] reading the prophet Isaiah and asked, Do you really understand what you are reading? And he said, How is it possible for me to do so unless someone explains it to me and guides me [in the right way]? And he earnestly requested Philip to come up and sit beside him.