Rivulet, or who as God?, the younger of Saul’s two daughters by his wife Ahinoam (1 Sam. 14:49, 50). “Attracted by the graces of his person and the gallantry of his conduct, she fell in love with David and became his wife” (18:20-28). She showed her affection for him by promoting his escape to Naioth when Saul sought his life (1 Sam. 19:12-17. Comp. Ps. 59. See TERAPHIM). After this she did not see David for many years. Meanwhile she was given in marriage to another man, Phalti or Phaltiel of Gallim (1 Sam. 25:44), but David afterwards formally reclaimed her as his lawful wife (2 Sam. 3:13-16). The relation between her and David soon after this was altered. They became alienated from each other. This happened on that memorable day when the ark was brought up in great triumph from its temporary resting-place to the Holy City. In David’s conduct on that occasion she saw nothing but a needless humiliation of the royal dignity (1 Chr. 15:29). She remained childless, and thus the races of David and Saul were not mixed. In 2 Sam. 21:8 her name again occurs, but the name Merab should probably be here substituted for Michal (comp. 1 Sam. 18:19).
Michal
How hard it is to share the joy of someone who is overjoyed at God’s presence, when one’s own heart is closed. Michal, Saul’s daughter, watched from a window as David came into the city with the ark, leaping and dancing before the LORD, and “she despised him in her heart.” Her words to him were sharp. David answered that he would celebrate before the LORD, whatever she thought. The chapter ends with one flat sentence: Michal “had no child unto the day of her death.” Her story is told in 2 Samuel 6, and it is hard to read without feeling both sides.
5 verses
2 Samuel
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.
Then David returned to bless his household. And Michal the daughter of Saul came out to meet David, and said, How glorious was the king of Israel to day, who uncovered himself to day in the eyes of the handmaids of his servants, as one of the vain fellows shamelessly uncovereth himself!
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.
And I will yet be more vile than thus, and will be base in mine own sight: and of the maidservants which thou hast spoken of, of them shall I be had in honour.
Therefore Michal the daughter of Saul had no child unto the day of her death.
From Easton's Bible Dictionary
Matthew George Easton, 1897