This message is defined in the file wp-includes/post-template, however you shouldn’t edit it there, but create a filter in the file functions.php that should look like this -> http://pastebin.com/7Q62kStb
The edits you’ll make to this form will appear on your site.
Thank you soooo much Fire Truck! I looked at your link. I’ve never created a filter so I just want to be sure I do this correctly. Do I just cut and paste your code in the functions.php file and then edit the wording to what I want it to say?