LEV 23:38

38 ◄Those festivals must be celebrated/You must celebrate those festivals► in addition to [worshiping on] the ◄Sabbath days/days of rest►. And all those offerings must be given in addition to the offerings that people personally decide to give, and in addition to the offerings that people make to accompany the solemn promises that they have made, or offerings that people make ◄voluntarily/because they themselves want to►.