"Stop selling salvation and go away".
"Salvation" isn't going to be granted by one selling dogma.
When someone tries to sell me the salvation thing, I just use logic to crush their argument. It usually goes something like this:
Them: Some variety of "You must be saved to enter heaven!"
Me: "I don't believe in heaven."
Them: "Okay... But you don't want to go to hell right? So you gotta be saved from your sins!"
Me: "I don't believe in hell or sin (because it's a faulty concept)."
Them: "The devil lied to you! They're both real!"
Me: "I don't believe in the devil."
Them: "Well he believes in you!"
Me: "Thanks for the support?"
Them: "But Jesus hung on a tree for your sins! No other god did anything like that for you!"
Me: "Allfather Odin was crucified on the world tree for 9 days, sacrificed and eye, and got himself down... all so men could wield magic through Runes."
Them: "Huh? Who's that?"
Me: "Germanic God of War and father of humanity. He's the central figure of Asatru and head of the tribe of Gods called the Aesir."
Them: "That god isn't real!"
Me: "Prove it."
Them: "Just read the bible! I'm sure you will understand how wrong you are when you do."
Me: "I've read it. I wasn't fond of all the murder and rape and other assorted nastiness."
Them: "No, that's not in the bible."
Me: "Believe whatever you like. As long as you don't bother me, I couldn't care less."
Them: "The bible says you need to be saved!"
Me: "From what? I'm fine."
Them: "From your sins!!! Everybody has fallen short of the glory of god!"
Me: *sigh* "My religion doesn't have a concept of sin or an obligation to be god-like. So I don't really care about that."
Them: "But the Bible-"
Me: "...is just a book. It doesn't have any special powers, nor any evidence to back it up. It's a claim, not the proof. If you want to make me believe something, show me proof. I'm very open-minded."
Them: "The proof is in the book!"
Me: "Books can make all the claims in the world, but the true things can be easily verified."
Them: "All the places in the bible were real!"
Me: "
The Time Machine by HG Wells was set in England. England is a real place. Therefore it is a true story by your logic."
Them: "I'll pray for your soul..."
Me: "Take the beam out of your own eye first... Seeya..."