Exodus 12:44

12:44 But everyone’s servant who is bought for money, after you have circumcised him, may eat it.

Exodus 21:11

21:11 If he does not provide her with these three things, then she will go out free, without paying money.

Exodus 22:17

22:17 If her father refuses to give her to him, he must pay money for the bride price of virgins.