Christian observance of Yom Kippur

As observed by the Living Church of God and United Church of God:

The Christian Day of Atonement is based on the English translation of the Jewish Holy day Yom Kippur. The day is commemorated with a 25-hour fast by Jews, but normally a 24-hour fast by Christians who observe it. While not observed by the mainstream of professing Christianity, the Christian groups (mostly those with origins in the old Worldwide Church of God) that do observe it usually refer to it as the Day of Atonement...

Generally, the Sacred Name Movement and groups reject Easter and Christmas as pagan in origin and observe the holy days of Leviticus 23 such as Yom Kippur, as well as Passover and the Feast of Weeks.[1]

Messianic Jewish congregations devote serious effort at presenting a rationale for taking Yom Kippur. Such as by the Emmanuel Messianic Jewish Congregation (Clarksville, Maryland, USA):

For believers in Yeshua, both Jewish and non-Jewish, the observance of Yom Kippur can hold special significance. The repentance started at Rosh HaShanah comes to a culmination with atonement ten days later. As with the traditional Jewish community, those ten days (Yomim Nora'im) can take on spiritual meaning as we meditate on the meaning of the high holy days. Although there are not many customs directly relating to the ten days, the message could be applied to a believer's daily meditation at that time. Traditional readings from the book of Jonah, Hosea 14 and other pertinent passages can enhance one's appreciation of the season...Blessed be the Lord God, who has secured our salvation in Yeshua the Messiah! That is what Yom Kippur is all about for those who call on his name...[2]

• Christian observances of Jewish holidays