what did john mean by satans native language

He meant that Satan’s “native language” is lying — in John 8:44, Jesus says the devil “is a liar and the father of lies,” so the phrase is a figurative way of saying deception is central to his nature.

What it implies

The line is not about an actual spoken language. It means that, unlike someone who speaks truth, Satan’s default mode is falsehood, manipulation, and deceit.

Common context

This wording is often used when people are summarizing John 8:44 or explaining it in sermons and commentary, where the emphasis is that lies come naturally to the devil because that is who he is.

In plain English

A simple paraphrase would be: “Satan lies the way other beings speak normally.” That’s the point Jesus is making in the verse.

Quick note

Some online discussions can make the phrase sound mysterious, but the biblical meaning is straightforward and metaphorical rather than literal.

TL;DR: John meant that Satan is fundamentally a liar, so “native language” is a poetic way of saying lying is his nature.