John,

The "Two Kingdom" theology has raised much controversy in Reformed circles, especially in the OPC. The Northwest Presbytery has submitted an overture to have the General Assembly study the issue and render a verdict against it. Rather than trying to explain it all here, I'll give you a link where you can read a well-written critique of this view that explains it in some detail. And another short critique as well.

1. Merit or ‘Entitlement’ in Reformed Covenant Theology: A Review
2. Two Kingdoms, Ten Commandments, One Objection


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simul iustus et peccator

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