He graduated high school, got married, and moved to Virginia with his wife, Mary Kate, to attend Liberty University.
Along the way, John Luke has become a man right before our eyes and got the chance to write down what he's learned.
According to Amazon, John Luke's book, Young and Beardless: The Search for God, Purpose and a Meaningful Life, allows him to "share his story of what it's like to grow up as a Robertson and all the fun and craziness that entails, as well as what he has learned as he has stepped out into his own unique experiences".
The book is currently available for preorder through Amazon and will be released on May 17.
His mom, Korie, made the announcement of the book on Instagram after she received her copy in the mail.
"Look what just came in!!" she wrote. "So proud of you, John Luke, for writing about your search for God, purpose and a meaningful life! We're all on that journey!"