sabbath or shabbot
The weekly holy day for Jews is called Shabbat.
The week culminates in the seventh day, the Holy Shabbat (shabbat kodesh, abbreviated ).
The Tanakh (Jewish Bible).
Pentecost
Sabbath.
Rosh Hashana is the Jewish New Year.
The Passover
Yom Kippur
Shabbat which starts Friday at sundown and ends Saturday after twilight.
Yes, Shavuot is a Jewish holy day/festival (Leviticus ch.23).
light blue (called tekhelet).
The Jewish Bible is called the Tanakh.
Judaism, the Jewish religion.