From around the net:
But what is the problem with being happy? Isn’t happiness a good thing? Doesn’t God want me to be happy? Again, it depends on what we mean by our use of the word “happy.” Happiness must be rightly ordered. Our happiness must be subject to our holiness. God does not want you to be happy when it is at odds with you being holy. When these become disordered we fall into the same problem as the nation of Israel at the end of Judges. The result of that tailspin was, “Everyone did what was right in his own eyes” (Judges 21:25). Happiness unchecked will always lead to doing what is right in your own eyes. And when we understand that the “heart is deceitful above all things” (Jer. 17:9), we can quickly understand the problem with doing what is right in our own eyes.
Instead, Christians should acknowledge that love is the answer but should labor to define that term as the Bible defines it. Happiness falls far short of love. Happiness is an emotion or state of mind. Love is something so much more.