Post Featured image display

Hi Guys,

I know this should be easy but I am stuck. I have a custom home page and am passing this information to display the post title and content but cant get the featured image of this post to work.

Here is the code I am using:

<?php
post_id = 3014;
$queried_post = get_post($post_id);
?>
<h4><strong>
<?php echo $queried_post->post_title; ?></h4>
<?php echo $queried_post->post_content; ?>

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I just want to get the featured image of the same post please.
Thanks in advance!