index.php

<?php

//* Add text above the loop on the main blog page
add_action( 'genesis_archive_title_descriptions', 'add_main_blog_description' );
function add_main_blog_description() {

	global $post;

	// Bail if this is an archive page (not the blog page)
	if ( is_archive() )
		return;

	// Bail if it's singular
	if ( is_singular() )
		return;

	$description = get_post_meta( 1102, 'blog_description', true );
	$description = apply_filters( 'the_content', $description );

	if ( $description )
		echo $description;
}

genesis();