Posts in all pages help

Hello I’m having a problem with posts showing up in all my pages.
I had this problem earlier and thought I fixed it but then noticed it wasn’t fixed after all. I figured out what’s doing the problem, my home page is working fine and showing the blog posts like I want it to but when I make a page with content it shows a blog post instead of the pages content.

The problem is my banner area where I have an editable area with a welcome message and slider images beside it. When I remove this section the page content shows up. Here is the code

<div id="banner">
        	<div id="welcome">
	<? query_posts('category_name=editable'); ?>
	<?php if (have_posts()) : while (have_posts()) : the_post(); ?>
		<h1><?php the_title(); ?></h1>
		<p><?php the_content( __('Read the rest of this page ?', 'template')); ?></p>
	<?php endwhile; endif; ?>

            	</div><!----- End Of Welcome ----->

            <div id="slider">
	<?php echo do_shortcode('[thethe-image-slider name="images"]'); ?>
            </div><!----- End Of Slider ----->

        </div><!------- End Of Banner -------->

what is the problem and what may the fix be?

Thank you