Yep, read the definition of each.
Now, the only word in the passage having anything to do with the dead is "necromancer".
Ahem - no. You recognized necromancy, you haven't researched the other arts or you'd realize immediatly that your statement is in error.
Webster's dictionary defined "necromancy" as "the art of, or a device for, revealing the future by pretended communication with the spirits of the dead; hence magic in general; conjuration." "Necromancer" is defined only as a derived form.
Research Necromancy - Webster's is a highly simplified view of what it is. Necromancy involves communing with the dead rather regularly for more than revealing the future. The bible also forbids the likes of psychics - who even today claim to communicate with the dead for their clients. You really need to study better, bud.
Thus, following standard protestant exegetical methods, we find that saying "St. David of Wales, patron of my soul, pray to Christ God that he grant mercy to my soul." Is not forbidden by the commandment of God which you cite.
You err in so doing. You need to talk to Angelo and study better!
By the way, are you so scrupulous about these things that you wouldn't buy a linen-wool blend jacket? (Just wondering--that's forbidden to the Jews in the Old Covenant too.)
Is any law less than another or more easy to break than another and get by with? If it is ok to break the least of the laws, is it not then ok to worship the devil? Sin is sin. Disobedience is disobedience. One sin is neither greater nor lesser than another. If you be disobedient in one thing, you are disobedient in all - for all are sin. And all sin is equal. Why do you tempt God with your words?
The Holy Orthodox Church maintains this strict prohibition against divination, sorcery, soothsaying, and necromancy (properly defined). Why don't you learn to read Greek? It might help you shake some of your narrow preconceptions about the meaning of Holy Scripture.
"Hail Mary, full of Grace, the Lord is with thee, blessed art thou among women, and blessed is the fruit of thy womb, for thou hast borne the savior of our souls. Beseech thou Him to have mercy upon us," neither seeks to foretell the future nor to magically influence. It asks the Theotokos to pray for us.