To tell you honestly, I don't know what witchcraft is.
''Witchcraft" is any use of supernatural power that is not from God. Its that simple. Incantations....casting of spells....summoning spirits.....evil (or even good) intent towards another using these things....it's all wrong. Regardless of the intent or the practice, we are told in the Bible to avoid all contact with spiritism. For Bible believers, that is not negotiable.
Everything we do and believe is part of the natural world whether it's external or internal (beliefs included). So, when someone says "I am closing my eyes, praying, while soaking salt in a glass with the symbol of the cross to satan that this person will have a happy ending" what does that really mean?
It means that they have made a choice to ignore God's warning...and will do so at their own peril. As I said, regardless of how you justify such things or the intent behind them, spiritistic practices put one in contact with the only other source of uncanny power....the devil and his henchmen....who are master deceivers.
Like the word witchcraft, how do you derive any biblical fact from this if not solely based on content at face value?
It relies entirely on whether you follow the Bible's teachings as coming from the Creator, (who knows everything there is to know about everything).....or whether you wish to justify practicing some form(s) of spiritism for your own reasons....at the end of the day, because you have not listened to his warnings, God will show you what he thinks of them. He would rather you listen.....because if you attach yourself to something that God says he is going to destroy, you will go down with it. He gives you the option to separate yourself from it....but it has to be your choice. If the first humans had just done as they were told instead of being fooled into believing that God had sinister motives......we would not be in this mess. God has never had a sinister motive in his life. If people really knew him, they would realize this. He is the epitome of love....and sometimes love has to be tough in order to benefit the ones who put in the effort to try harder. That is why God's cardinal quality of Love has to be tempered with his other three dominant qualities.....justice, wisdom and power.