Kiddush, literally, "sanctification", is a blessing recited over wine or grape juice to sanctify the Shabbat and Jewish holidays. Additionally, the word refers to a small repast held on Shabbat or festival mornings after the prayer services and before the meal.

Shabbat or the Sabbath, also called Shabbos by Ashkenazim, is Judaism's day of rest on the seventh day of the week—i.e., Saturday. On this day, religious Jews remember the biblical stories describing the creation of the heaven and earth in six days and the redemption from slavery and the Exodus from Egypt, and look forward to a future Messianic Age. Since the Jewish religious calendar counts days from sunset to sunset, Shabbat begins in the evening of what on the civil calendar is Friday.