Unless otherwise indicated, the code snippets you see below should be placed into your theme’s functions.php file.
In order to include page content at the beginning of a page utilizing the Blog Page template, create a file named page_blog.php within your child theme directory, containing the following content:
<?php
//* Template Name: Blog
//* Show page content above posts
add_action( 'genesis_loop', 'genesis_standard_loop', 5 );
genesis();