The Content widget allows you to add the content of a specific post to a page. You can display your content format as:
Text only, that means it will appear unformatted;
Text with automatic <p>;
Interpreted by the Shortcode the_content.
You can also state how many characters you want to show, so that you can create a shorter version of your content. Moreover, if you need to, you can select the source choosing dynamically among the content of the same page or from other specific posts.