Rejoice is something you can will to do. Like laughter does good like a medicine. This is a day the LORD has made. Let us rejoice and be glad in it! Read: Psalm118:24 (click on link below and read today’s Scripture).
http://bibleresources.bible.com/passagesearchresults2.php?tp=150&book_id=23&c=118&passage1=Psalm+118%3A24&version1=51