Matthew Poole and continuators on Exodus 21:11

11 And if he do not these three unto her, then shall she go out free without money.

And with gifts also by vertue of the law Deut. 15. 14. The summe is this, The master was either 1. willing to part with her, and then he was to let her be redeemed by her self or any of her friends, but not by an heathen, ver. 8. or 2. willing to keep her, and then as he had betrothed her, he was to perform all the duties of an husband to her, although he had another wife besides her, ver. 10. if he would keep her and yet deny those duties to her, then as his fault was aggravated, so was his punishment, for now he cannot sell her, but must let her go freely, in this verse.