Maybe so, Paul now thinks, but according to Genesis 15:6 Abraham believed God—believed, that is, the promise that he would be the father of an uncountable family that would inherit the whole world—and it was reckoned to him as righteousness. This faith, this trust, this loyalty was Abraham’s covenant badge. A covenant, Paul saw, to which the One God had been faithful in the events of Jesus’s crucifixion and resurrection. A covenant in which all who believed in “the one who raised from the dead Jesus our Lord” were now full members.

