I know that King David did not give Michal a will of divorce when Saul gave her to Laish.
Even though that was a forbidden marriage because she did not have a get, how was King David allowed to take her back? I mean, didn't Laish and Michal have intercourse, which would then for sure make her non-permissible for King David to take her back?
Sorry if I'm not being clear, but basically: How was David allowed to take Michal back?