2Sa 6:16 And as the ark of the LORD came into the city of David, Michal Saul's daughter looked through a window, and saw king David leaping and dancing before the LORD; and she despised him in her heart.
Michal had been the princess when her father was king. Her brother had been next-in-line for the throne, and she had married a top military leader. But now her father and her brother were dead, and she was a member of David's small but growing harem. Michal's career had definitely taken a bad turn, and now she despised her husband David. Granted, David might have been partly to blame for the situation, but Michal was envious of him. David was receiving honor and acclaim that Michal felt were rightfully hers. After all, her father Saul and her brother Jonathan had been the ones who promoted David.
2Sa 6:21 And David said unto Michal, It was before the LORD, which chose me before thy father, and before all his house, to appoint me ruler over the people of the LORD, over Israel: therefore will I play before the LORD.
David shows us how to handle envy within the family of God. He pointed out to Michal that it was God Who had chosen David over Saul, Jonathan, and Michal's other relatives. Going to the palace hadn't been David's idea, and his promotions came from others, not from his own plots.
If you are being blessed in church work, and someone suddenly demands to be put in charge, your answer ought to be that God had given you the position and the blessing, choosing you over the person who seeks the position.