In Sapphira and the Slave Girl, Henry Colbert "took from the shelf a book he often read, John Bunyan's Holy War, -- a copy printed in Glasgow in 1763." He reads the passage beginning "Also things began to grow scarce in Mansoul," and continues with "When the town of Mansoul had thus far rid themselves of their enemies." In reading, "he found consolation. An honest man, who had suffered much, was speaking to him of things about which he could not unbosom himself to anyone."
In Sapphira and the Slave Girl, Henry Colbert "found a comforter in John Bunyan, who also had been troubled."
In "The Professor's Comencement," Emerson Graves recalls The Holy War late at night, and as he does so, he worries about which "captains" shall replace him.