פירוש על שמואל ב 13:13

Because he will not keep me from you. I am permitted to you because my mother became pregnant with me when she was still a gentile, pretty woman⁵The laws concerning the taking of gentile woman during war is discused in Devorim begginning in 21:10. The Torah calls her a יְפַת תּוֹאַר, “pretty woman.” that Dovid took conjugally in war. And someone who has a son or daughter from a gentile handmaid is not considered his child for any legal matter.