The Bible has always been an integral part of American political culture. Yet in the years before the Civil War, it was the Old Testament, not the New Testament, that pervaded political rhetoric. From Revolutionary times through about 1830, numerous American politicians, commentators, ministers, and laymen depicted their young nation as a new, God-chosen Israel and relied on the Old Testament for political guidance.

In this original book, historian Eran Shalev closely examines how this powerful predilection for Old Testament narratives and rhetoric in early America shaped a wide range of debates and cultural discussions—from republican ideology, constitutional interpretation, southern slavery, and more generally the...