Do this: https://developers.facebook.com/products/social-plugins there you will find anything you need. From like buttons to a complete Page feed. The developer page is buggy with adblockers installed so beware. Complete FB feed: https://developers.facebook.com/docs/plugins/page-plugin
Press: Get code. Paste first part of the code in advanced part of main page! Not the page where you want the feed to show.
Go to page where you want the page. Add an "embed" block. Not a code block! On the "embed" pop-up click the </> sign and paste the 2nd part of the code. "apply" and save the page and voila!