As we prepare to read the twinned stories of the banishment of Ishmael and the binding of Isaac we revisit this installment from our The BEST series, in which our editor Jeffrey Saks offered a reading of Marilynne Robinson's Pulitzer Prize-winning novel "Gilead." In this work about fathers and sons, and our Father in heaven and His children, Robinson (a devout Christian) puts into the mouth of her protagonist an extended homily on the Patriarch Abraham and his sons.