C. F. Keil and Franz Delitzsch on 1 Kings 15:10

1Ki 15:10

Asa reigned forty-one years. “The name of his mother was Maacah, the daughter of Absalom.” This notice, which agrees verbatim with 1Ki 15:2, cannot mean that Abijam had his own mother for a wife; though Thenius finds this meaning in the passage, and then proceeds to build up conjectures concerning emendations of the text. We must rather explain it, as Ephr. Syr., the Rabbins, and others have done, as signifying that Maacah, the mother of Abijam, continued during Asa’s reign to retain the post of queen-mother or הגּבירה, i.e., sultana valide, till Asa deposed her on account of her idolatry (1Ki 15:13), probably because Asa’s own mother had died at an early age.