וְאִם־שְׁלָ֨שׁ־אֵ֔לֶּה לֹ֥א יַעֲשֶׂ֖ה לָ֑הּ וְיָצְאָ֥ה חִנָּ֖ם אֵ֥ין כָּֽסֶף׃ (ס)
And if he do not these three unto her, then shall she go out for nothing, without money.
Read Jewish philosophy on Exodus 21:11: Rambam's Guide for the Perplexed, Saadia Gaon, and classical Jewish philosophical sources, free online.