Prevent access to folder and add a message using htaccess

RewriteEngine On
RewriteBase /
RewriteRule ^ - [F]
ErrorDocument 403 "Your message here."

or

RewriteEngine On
RewriteBase /
RewriteRule ^ - [F]
ErrorDocument 403 "<div style='font-family:Arial,Helvetica,sans-serif;text-align:center;margin-top:12%;'><h2 style='font-size:28px;font-weight:normal;color:#333;margin-bottom:12px;'>What ever you want to say</h2></div>"

or recursively:

Order Allow,Deny
Deny from all
ErrorDocument 403 "Your message here"
Require ip 100.30.128.4 117.40.128.5
ErrorDocument 403 "Access from..."