Vayikra 23:3-5

Orthodox Jewish Bible

³ Sheshet yamim shall work be done; but the yom hashevi’i is the Shabbos of Shabbaton, a mikra kodesh; ye shall do no work therein: it is the Shabbos to Hashem in all your dwellings.

⁴ These are the Moa’dim of Hashem, even mikra’ei kodesh, which ye shall proclaim in their mo’adim.

⁵ In the fourteenth day of the first month at twilight is Hashem’s Pesach.