Automatically Display Featured Image at the Top of Page

Add this code to your functions.php file:

/* Code to Display Featured Image on top of the post */
add_action( 'genesis_entry_content', 'featured_post_image', 8 );
function featured_post_image() {
  if ( !is_singular( array( 'post', 'page' ) ))  return;
    the_post_thumbnail('featured');
}