"Young Goodman Brown"

As I began reading my first impression of the story was very spiritual. The story gave me an impression that it was speaking of the afterlife and crossing over. What made me take on this thought was that throughout the story it talked about a journey, and the name Faith was the name of Mr. Brown's wife. Also the wording of the story like thou, thy were very biblical. However, as the story went on it began to speak of wickedness, brooms and serpents. This is when I started to get confused. I had to question myself, was this story written in biblical thoughts or for witchcraft? I'm still confused, can someone help me out?