Max Lucado is a well-known and beloved author as well as a minister at Oak Hills Church. Please see the Max Lucado website for additional stories, books, and other inspirational links.
I stumbled upon this gem many years ago when feeling sad and letdown at the end of a busy but happy Christmas season. It has now become an annual tradition to re-light the candles of our Advent wreath at the end of Christmas Day and read this story, which always makes me weep at the line "In the emotion of the father who is too thankful to finish the dinner table prayer." I have not been able to find it online again, but reproduce it here with all credit to Reverend Lucado.