[Havoc]

In Matthew 17, do Elijah and Moses not appear to Jesus, Peter, James, and John?

In fact they do appear - in a vision, not bodily. Matthew 17:9 And as they came down from the mountain, Jesus charged them, saying, Tell the vision to no man, until the Son of man be risen again from the dead.

[nickcarraway]

So you believe they were sinning against Deuteronomy 18:10–11? No, Deuteronomy 18:10–11 is against necromancy. Jesus was not practicing necromancy, and neither are we if we ask saints to pray to God for us. How do you explain Revelation 5:8?