Both his statements are false. It’s up to him to prove his claims. Having said that, what the Church did was forbid ownership of faulty Bible translations, which was her right since the Bible is the Church’s book. There were many good translations of the Bible into various vernacular languages before Martin Luther was born. The problem was that Bibles had to be hand written, which meant they cost a lot of money. It wasn’t until the printing press was invented that Bibles, and indeed other works, could be made available to the masses. On top of that most people were illiterate, so even if they owned a Bible, they couldn’t read it.
Also he claims Mary is a sinner and needed to be saved.
She wasn’t and isn’t a sinner, but she was saved by Christ’s redemption. In her case God saved her before she could sin–at her conception, because she was to be the Theotokos (in Greek), the “God-bearer” or Mother of God, as we say it. The Angel Gabriel pronounced her “full of grace” at the Annunciation, in the sense that she had always been full of grace and still was.
Also he say that praying to saints is a form of necromancy.
Again, he is simply wrong. Jesus himself refuted the idea that the dead are dead:
Mt. 22:32b “He is not God of the dead, but of the living.”
Mk. 12:27 “He is not God of the dead, but of the living; you are quite wrong.”
Also, ask him if Jesus was practicing necromancy when he talked to Moses and Elijah on the Mount of Transfiguration. I doubt he’ll say that he was.
I was wondering how I could rebuke these claims. I know the basics so my faith in the tradition so the church haven’t suffered but I need to be able to make a counter arguement so this person will at least rethink his position. Any help would be appreciated.
I hope this gets you started, at least. Don’t be surprised if these answers make no dent, though. He probably is so invested in his biases and misinformation that he will not budge. So, pray for him for only the Holy Spirit can convince him of the truth.