Michal, revealing another aspect of her nature, accuses David of dancing shamefully before the maids of his servants. Jealousy had set so deeply in her heart that it led her to despise her husband. Her embarrassment—which no one else seemed to share—blinded her to the larger occasion of giving God glory. She could see the celebration going on from her window, but in her self-centered jealousy and pride, she refused to rejoice with the rest of Israel.
She could only find fault. Proud Michal felt that her husband should do things the way she thought they should be done—evidently, with stately grandeur rather than wild abandon. Her jealousy caused her to try to make David feel guilty for celebrating as he did. The king does not let her off easily, but lets her have a piece of his mind!
Today, we might call Michal a "party pooper," but in reality, her transgression was far more serious. Because she could not see past her baseless pride and jealousy, she was punished with barrenness. Some commentators suggest that she was not to come before the king the rest of her life!
Ronny H. Graham
The Refuser of Festivities