Last post ordered by publish date using WP_Query on front page

The following 3 parameters will give you the posts in Ascending order from the date it was published (i.e The older posts will be shown first)

‘post_status’ => ‘publish’, ‘orderby’ => ‘publish_date’, ‘order’ => ‘ASC’

When you change the order to DESC you will get the posts in Descending order from the date it was published (i.e The latest posts will be shown first)

‘post_status’ => ‘publish’, ‘orderby’ => ‘publish_date’, ‘order’ => ‘DESC’

<?php
$postsPerPage = 10;
$page = 1;
?>
<?php
$query = new WP_Query(array(
    'cat' => 4,
    'post_status' => 'publish',
    'orderby' => 'publish_date',
    'order' => 'ASC',
    'paged' => $page,
    'posts_per_page' => $postsPerPage));
?>