Therefore; not because of David's words to her, which have nothing in them to this purpose; but because of her proud, and petulant, and ungodly speech and carriage to David, which God justly punished with sterility. Michal had no child, to wit, by David, and after this time, which these words evidently respect; which was true, although those five children ascribed to Michal, 2 Samuel 21:8, were hers by birth, and not by adoption only. Unto the day of her death, i.e. never; for if she ever had any, it must be before her death. Compare 1 Samuel 15:35 Matthew 1:25.
Related Commentaries of 2 Samuel 6:23
2 Samuel 6:23
23 Therefore Michal the daughter of Saul had no child unto the day of her death.