On Rosh Hashana, God judges the world (and all the people therein), but their fates are not sealed until 10 days later, on Yom Kippur. It is during these ten days that we must present a compelling case of our worthiness to the heavenly court.

These ten days that start on Rosh Hashana and conclude on Yom Kippur, are known as the Aseret Y’mei Teshuva, Ten Days of Repentance. During this time, people go out of their way to make amends both with their fellow humans and with God. In addition to the acts of teshuva, the sages of the Talmud altered the words of the Amidah in order to create the mind-set necessary for this time of year:

“Raba ben Chin’neh’na the Elder also said in the name of Rav: Throughout the year one says in the prayer [Amidah], ‘The holy God’, and ‘King who loves righteousness and judgment,’ except during the ten days between New Year and the Day of Atonement, when he says, ‘The holy King’ and ‘The King of judgment’” (Berachot 12b).

While the Talmud specifically mentions these two changes, there are several other verses of the Amidah that are altered during the Aseret Y’mei Teshuva (all of which are noted in most prayerbooks).

These changes are discussed at length in the codes of practical halacha. The general consensus is that if the change from “King who loves righteousness and judgment” to “the King of judgment,” or any of the other alterations not singled out in this Treat, is not made, the Amidah need not be repeated. However, the acknowledgment of God as King is so important that those who forget to change “the holy God” to “the holy King,” are instructed to repeat the entire prayer.

This Treat was last published on September 20, 2012.