Add or edit the notes before the WordPress comments form

functions.php

<?php // remove this line

// Add or edit the notes before the comments form
add_filter( 'comment_form_defaults', 'sp_add_comment_form_before' );
function sp_add_comment_form_before( $defaults ) {
	$defaults['comment_notes_before'] = '<p class="comment-notes">Your email address will not be published. Required fields are marked <span class="required">*</span></p>';
	return $defaults;
}

Thank you.