[1] An Arabic word, it’s Israeli slang- the equivalent of the American, “Cool”
[2] Bamidbar 28:9
[3] The only exception is in regards to Rosh Chodesh it also says, “This is the elevation offering of each month on its month.” But in regards to that verse the Gemara (Yoma 65b) derives a law from those words.
[4] Rabbi Shlomo Carlebach a’h repeats this thought when he sings about Shabbos
[5] Medrash Tehillim (92); quoted by Rabbeinu Bechaye, parshas Pinchas
[6] Yeshaya 40:1; opening verse of haftarah for Shabbos Nachamu (Vaeschanan)
[7] Yalkut Shimoni
[8] Beitzah 16a
[9] In Yiddish the word is ‘grub’; it does not translate well into English