Ummm...yeah...backing away slowly. Hey, I have an idea! Why don't you pick up something called concordance and do a little research. Yes, the bible does say "Thou shall not suffer a witch to live" (Exodus) as well as commenting negatively regarding sorcerers and so on. The fundamental problem, however, is that it generally does not define what witchcraft, sorcery, and enchantment, and so on are. This can become problematic fairly quickly. For example, by old testament standards a doctor who prescribes prescription drugs and the pharmicist who prepares them are practicing sorcery and witchcraft (because in those days doctors tended to be bamboozling hacks and a "pharmacist" was likely as not to poison someone).
So if you want to figure out what the heck they were talking about in those days and do some study, the bad stuff boils down to this:
(1) Summoning up spirits.
(2) Casting curses.
(3) Attempting to control someone with magic (enchantment)
(4) Making and dispensing poisons.
(5) Attempting to predict the future (via various froms of divination.)
Anyone who is a bible scholar, please add to my list. My point is that it is pretty important to know what we are going to call "witchcraft" in the biblical sense, and to know if what "witches" today practice is the same. My observation is that some of it is (most of it), and some of it isn't. I think way too many people who actually do get involved with magick think that it is just okay, and "do you harm none" there is no problem with it. I disagree, for a variety of reasons. I think a large percentage of it ranges from problematic to outright wrong. But some of it will probably eventually be classified as science (in some disciple or disciplines not yet named) and doesn't violate the biblical injunctions.