Row 1: "The Bible is not my book, nor Christianity my profession." — Abraham Lincoln. Row 2: "He had no faith, in the Christian sense of the term — he had faith in laws, principles, causes and effects." — Supreme Court Justice David Davis, on Abraham Lincoln.

The Herndon-derived material behind these lines is genuine and well attested: William Herndon, Lincoln's law partner, documented in his reminiscences and in *Herndon's Lincoln* (1889) that the young Lincoln of New Salem and early Springfield read Paine's *Age of Reason* and Volney's *Ruins*, wrote a skeptical essay that a friend (either Samuel Hill or Herndon himself) reportedly burned to save his political future, and was regarded locally as an 'infidel' on doctrinal questions. David Davis, who knew Lincoln primarily from the Eighth Judicial Circuit in the 1840s-50s, is a credible witness to that middle-period Lincoln — a rationalist who trusted evidence, law, and consequence more than revealed doctrine. None of that is disputed by serious historians. What the spreadsheet quote omits is that this is a snapshot of one phase of a religious trajectory that changed substantially, and the change is itself extensively documented. Lincoln never joined a church and made no creedal profession — which is the literal, narrow truth behind 'Christianity is not my profession' — but his adult correspondence and especially his presidential rhetoric moved decisively toward a serious, biblically saturated providentialism. After the death of his son Eddie (1850) and especially Willie (1862), and under the moral weight of the Civil War, Lincoln's public language becomes dense with scriptural allusion and reflection on divine judgment. The clearest evidence is the Second Inaugural Address (March 1865), which Ronald C. White Jr. (*Lincoln's Greatest Speech: The Second Inaugural*) treats as one of the most theologically serious speeches ever delivered by an American statesman — Lincoln wrestles openly with the idea that the war is God's judgment on the nation for slavery, quoting Psalm 19:9 directly ('the judgments of the Lord are true and righteous altogether') and refusing the easy, self-serving theology both North and South wanted. Allen Guelzo's work on Lincoln's religion (see his biography *Abraham Lincoln: Redeemer President*) traces this arc in detail: a man who began as a skeptical rationalist and ended as a brooding, scripturally literate meditator on providence, without ever becoming a conventional creedal Christian. The honest picture is neither 'Lincoln secretly believed all along' nor 'Lincoln stayed an unbeliever his whole life' — it is a real, documented evolution, and freezing him at the New Salem stage (as the row does) is a selective snapshot, not the complete record.

Lincoln's mature public theology — most fully expressed in the Second Inaugural's meditation on divine judgment through the Civil War — is itself a serious instance of biblically grounded moral reasoning about providence, national sin, and justice, produced by a man who arrived at it through hard experience rather than inherited piety. That a rigorous, skeptical intellect moved toward, not away from, providential and scriptural categories under the pressure of real moral crisis is at least as instructive as his earlier skepticism, and arguably more so, since it reflects his most tested and considered judgment rather than his youngest.