An excuse is a skin of a reason stuffed with a lie.

In this epigram, Sunday—an evangelist known for punchy, colloquial moral rhetoric—condenses a critique of self-justification. An “excuse” is pictured as something that looks like a legitimate “reason” on the outside (“skin”), but whose interior is “stuffed with a lie,” implying that excuses often conceal dishonesty: either a lie to others, or a lie we tell ourselves to avoid responsibility. The metaphor also suggests emptiness and artificiality: the excuse is not a solid argument but a hollow casing. The line’s force lies in its moral absolutism, urging candor, accountability, and repentance rather than rationalization.