First of all, whether or not you believe in "sin" and the form which "sin" takes differs not only between paths and religions but also between individuals. Sin is defined (in the dictionary) as a transgression against the divine law. How you define the divine law ultimately decides what you believe to be sin. If you (as in you personally) feel like magic is a sin, I would suggest it's maybe not your thing. However, obviously most practitioners would say no, magic is not a sin.
Secondly, witchcraft does not call evil or bad souls and spirits to us unless that is that the caster intends (or something has gone horribly, horribly wrong with the casters understanding of magic). There are these little things called "the basics" which I (and most likely everyone you interact with on here) would suggest you read and learn. If you're undecided about your moral stance on magic, you can still read about the basics, learn about magic and then make an informed decision without casting.
Re: Is Casting spell a sin? By: WhiteRav3n / Knowledgeable
Post # 7 Jun 23, 2014
Magic existed before religion and will continue to exist no matter what. Magic is nature, it is science, it is medicine, it is psychology... Magic is a loaded word!
And many people erroneously believe that it applies only to "casting". The star athelete that won't play a game without his lucky shirt is using magic. The wish made on birthday candles or a star--magic. Prayer--magic. Ever lit a candle for someone? Yep, magic. Bad luck superstition "reversals" like throwing salt over your shoulder--magic! Amulets, talismans, icons, altars, Everyone over the entire world, no matter what time period, culture, or religion has in some form practiced magic. Even those that say it is evil ignore the reality that they in fact experience it daily.
"sin" "bad soul" "evil spirit" These are the words of men and religion. Magic is far above and beyond all of that.
I am a Christian witch, and I've struggled with this a lot. After a lot of soul searching, I came to a conclusion that works for me. I don't think that casting spells is a sin. Magic is just intention put to energy. Energy is in all things.
If you are a Christian, and believe in God and Sins. Then, yes. Casting magic is a sin, God doesn't like any form of magic because it calls upon something other than him to work. Though, just as any other sin God will forgive you for your sin if you ask for forgiveness.