אִם־אַחֶ֖רֶת יִֽקַּֽח־ל֑וֹ שְׁאֵרָ֛הּ כְּסוּתָ֥הּ וְעֹנָתָ֖הּ לֹ֥א יִגְרָֽע׃
If he take him another wife, her food, her raiment, and her conjugal rights, shall he not diminish.
Read Jewish philosophy on Exodus 21:10: Rambam's Guide for the Perplexed, Saadia Gaon, and classical Jewish philosophical sources, free online.