Leviticus 23:41

You shall chagag (keep) it a chag (feast/festival) to Yahawah () shabai (seven) yamayam (days) in the shanah (year): it is a chaqah (statute) iwalam (forever) throughout your dawar (generation / age / period); you shall chagag (keep) it in the shabayaiy (seventh) chadash (month).

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