Tim Tebow pens foreword to “The Seven Longest Yards” by Chris & Emily Norton “… You are about to begin a master class in the power of perseverance.” – Tim Tebow  Grand Rapids, Mich., May 29, 2019 — Chris & Emily Norton announced on their Instagram and Facebook accounts that longtime supporter Tim Tebow will write the foreword to their upcoming memoir, The Seven Longest Yards: Our Love Story of Pushing the Limits While Leaning on Each Other, that is scheduled to…