Matthew 5:27 — Lusting in the heart is adultery in the heart, but it is not the same act as physical adultery; using 'all sin is the same' to justify the full act is logically incoherent.

Jesus says that looking at a woman with lust is committing adultery in the heart. The point is that even internal sin is real sin before God. But if a man reasons 'I've already committed adultery in my heart, so there's no added harm in going through with it physically since all sin is the same,' he has used bad theology to justify a far graver act. Mike argues that most people intuitively recognize the physical act is worse, and that intuition is correct — proving in practice that all sin is not the same.