Shared ground

Revelation 21:8 functions as a sharp contrast to the promise of inheritance and life in the new creation scene just before it (Revelation 21:6–8). The text explicitly presents two outcomes: one group receives life and inheritance, while another group is excluded and assigned a different “portion.”

The excluded group is described by a list that starts with stance and allegiance (“cowardly,” “unbelieving”), then names a broad moral category (“sinners”) and several kinds of destructive, disloyal, or deceitful behavior (including murder, sexual immorality, sorcery, idolatry, and “all liars”). The outcome is explicitly named: their portion is “the lake that burns with fire and sulfur,” which the verse directly identifies as “the second death.”

Where interpretation differs

Some differences center on what the first items mean in context. “Cowardly” can be read mainly as fear-driven compromise when pressured (for example, backing away from faithful witness under threat), or more generally as a settled pattern of refusing costly loyalty. “Unbelieving” can be read narrowly as refusal to trust and align with God in the book’s conflict, or broadly as anyone without faith.

A second set of differences concerns scope and emphasis within the list. Some read “sinners” as a summary label for the whole group, while others treat it as an additional category alongside the others. Likewise, “all liars” can be understood as people characterized by deceit as a defining trait, or as a phrase that stresses the seriousness of falsehood without attempting to classify every single instance.

A third difference is how to understand the “lake of fire and sulfur.” Many agree it signifies final exclusion and destruction, but readers vary on how literal the imagery is versus how much it functions as apocalyptic picture-language.

Why the disagreement exists The verse is brief, but it uses compressed moral categories and vivid images that the book uses elsewhere in symbolic and dramatic ways. Also, some words can describe either a momentary act (fear, a lie) or an identity-defining pattern; the verse does not pause to spell out that distinction. Because Revelation regularly frames allegiance to God against rival worship and public pressure, readers weigh context differently when deciding how tightly to link “cowardly” and “unbelieving” to that setting.

What this passage clearly contributes This verse adds a boundary statement to the new-creation promise: the renewed world is not portrayed as including every kind of allegiance and practice. Explicitly, it names a set of people and assigns them a portion that is outside the city’s life, calling it “the second death.” It also shows that the book treats deception (“all liars”) and rival worship (idolatry, sorcery in its world) as belonging to the order that is finally judged, not to the world being made new.