Article continues below advertisementSavannah Guthrie is leaning heavily on her faith as she waits for answers after her mother, Nancy Guthrie, mysteriously vanished.Article continues below advertisementOn Monday, February 2, the journalist took to Instagram to address her mom's disappearance, days after the 84-year-old was last seen on January 31 in Arizona."We believe in prayer. we believe in voices raised in unison, in love, in hope. we believe in goodness. we believe in humanity. above all, we believe in Him," Savannah wrote in a statement, alongside a graphic that read, "Please Pray.