As explained to you, Deu 13 does not apply anymore in both Judiasm and Christianity. Looks like you are barking up the wrong tree or fighting a windmill.
Death and persecution of apostates does however continues in Islam, even for Muslims in Singapore. I have met so many Malay Christians and they all get thrown out of their homes for converting to Christianity.
Why do you Muslims persecute apostates if there is indeed no compulsion in religion?