He came across as a good guy. He didn't directly swipe at Trump, he didn't say he would fight on. He chose to speak about issues on which he sounds conservative. Said God has a plan for each of us and seemed to be accepting that the presidency in 2016 wasn't the plan for him.
I doubt he's burned his bridges in Ohio.
History of the recitation he quoted. Also used by Eisenhowers the last president we elected without political background
http://www.bartleby.com/73/829.html
It was Castro speech. He ignored Trump.