"And if these three … then she shall go out free": I might think, "free" of a get (a divorce, if he marries her). How, then, would I understand (Devarim 24:1) "then he shall write her a bill of divorce"? As obtaining with other women, other than a Hebrew maid-servant. It is, therefore, written "And if these three … then she shall go out free" — free of money (payment), but not free of a get.