In 1929, as the US economy crashed, millions of people lost everything. But not Floyd Odlum. As everyone else panicked and sold their stocks at cut-rate prices, Odlum appeared to foolishly jump in and purchase stocks just as the nation’s future disintegrated. But Odlum’s “foolish” perspective paid off, yielding robust investments that endured for decades.

God told Jeremiah to make what seemed like an absolutely ludicrous investment: “buy [the] field at Anathoth in the territory of Benjamin” (Jeremiah 32:8). This was no time to be buying fields, however. The entire country was on the verge of being ransacked. “The army of…