How to delete all the posts in my home page?

I have created a new front page name this way:
customize–static front page–add new page–front page–My New Home Page

The home page turned into below when to reopen my homepage of wordpress.

home page

How to delete all the three posts and it’s content in my home page?

How could i edit the page.php?

page.php
<?php
/**
* The template for displaying all pages
*
* This is the template that displays all pages by default.
* Please note that this is the WordPress construct of pages and that
* other ‘pages’ on your WordPress site will use a different template.
*
* @package WordPress
* @subpackage Twenty_Fourteen
* @since Twenty Fourteen 1.0
*/

get_header(); ?>

<div id=”main-content” class=”main-content”>

<?php
if ( is_front_page() && twentyfourteen_has_featured_posts() ) {
// Include the featured content template.
get_template_part( ‘featured-content’ );
}
?>
<div id=”primary” class=”content-area”>
<div id=”content” class=”site-content” role=”main”>

<?php
// Start the Loop.
while ( have_posts() ) : the_post();

// Include the page content template.
get_template_part( ‘content’, ‘page’ );

// If comments are open or we have at least one comment, load up the comment template.
if ( comments_open() || get_comments_number() ) {
comments_template();
}
endwhile;
?>

</div><!– #content –>
</div><!– #primary –>
<?php get_sidebar( ‘content’ ); ?>
</div><!– #main-content –>

<?php
get_sidebar();
get_footer();