By Eglah his wide - The Targum, Jarchi, and others, maintain that this was Michal, the daughter of Saul; but this does not well agree with 2-Samuel 6:23 : Michal had no child to the day of her death. Yet she might have had a child before the time that is mentioned above.

Eglah his wife--supposed to be another name of Michal, who, though she had no son after her mockery of David for dancing before the ark [2-Samuel 6:16, 2-Samuel 6:20], might have had one previous to that time. She has the title of wife appended to her name because she was his proper wife; and the mention of her name last probably arose from the circumstance that, having been withdrawn from David and married to another husband but afterwards restored, she had in reality become the last of his wives.

His wife - Possibly so called because she was his first, and therefore most proper wife, though her son was born after all the rest before mentioned, and therefore she and her son are put in the sixth place, the wive being here named only for the sons sake.