Settings >> Discussion >> uncheck "Allow people to post comments on new articles"
This applies to new posts that you will publish from now on. To disallow comments from already publish posts:
Posts >> select them all and "Edit" under bulk actions and hit apply >> choose "do not allow" next to comments and hit update posts. and other way
The topic title talks about "pages". Assuming that you want to continue have discussion on your blog posts but turn it off only from "pages, you'll have to remove the code snippet "
This applies to new posts that you will publish from now on. To disallow comments from already publish posts:
Posts >> select them all and "Edit" under bulk actions and hit apply >> choose "do not allow" next to comments and hit update posts. and other way
The topic title talks about "pages". Assuming that you want to continue have discussion on your blog posts but turn it off only from "pages, you'll have to remove the code snippet "
<?php comments_template(); ?>" from the page.php of your theme, as mercime advised.
Posts
