And she shall remove the garment of her captivity from upon her, and she shall remain in your house and weep for her father and her mother a full month; and afterward you may come to her and possess her, and she shall be your wife.
English: “And afterward” — kiddushin does not take effect with a non-Jewish woman, for the verse says “and afterward you shall come to her \ldots and she shall be your wife,” implying that beforehand kiddushin does not take effect with her.
On the daf / in context: The sequence “afterward \ldots and she shall be your wife” teaches that only after the conversion process does marriage acquisition become possible. A child born from relations before conversion follows the mother’s status.
Type of Learning
Derash from the sequential language “ve-achar kein \ldots ve-hayesa lecha le-ishah.”
What Is Learned
Kiddushin does not take effect with the captive woman until after the conversion process prescribed by the verse; beforehand she remains a non-Jewess for the purpose of lineage.