Yom Kippur
Yom Kippur: the Day of Atonement
Once a year the high priest entered the Holy of Holies with blood. Hebrews describes Yeshua as the High Priest who entered once for all.
Leviticus 16 describes the holiest day: two goats, one offered and one sent into the wilderness carrying Israel's sins, and the high priest sprinkling blood on the mercy seat.
With no Temple since 70 CE, Yom Kippur is kept with fasting, repentance and prayer. The Musaf service still recites the high priest's Avodah.
The New Covenant says Messiah "entered in once for all into the Holy Place, having obtained eternal redemption" (Hebrews 9:12), and that he carried our sins away like the scapegoat (Isaiah 53:6, 12).
In the Scriptures
21וְסָמַ֨ךְ אַהֲרֹ֜ן אֶת־שְׁתֵּ֣י ידו [יָדָ֗יו] עַ֨ל רֹ֣אשׁ הַשָּׂעִיר֮ הַחַי֒ וְהִתְוַדָּ֣ה עָלָ֗יו אֶת־כָּל־עֲוֺנֹת֙ בְּנֵ֣י יִשְׂרָאֵ֔ל וְאֶת־כָּל־פִּשְׁעֵיהֶ֖ם לְכָל־חַטֹּאתָ֑ם וְנָתַ֤ן אֹתָם֙ עַל־רֹ֣אשׁ הַשָּׂעִ֔יר וְשִׁלַּ֛ח בְּיַד־אִ֥ישׁ עִתִּ֖י הַמִּדְבָּֽרָה׃ 22וְנָשָׂ֨א הַשָּׂעִ֥יר עָלָ֛יו אֶת־כָּל־עֲוֺנֹתָ֖ם אֶל־אֶ֣רֶץ גְּזֵרָ֑ה וְשִׁלַּ֥ח אֶת־הַשָּׂעִ֖יר בַּמִּדְבָּֽר׃
21And Aaron shall lay both his hands upon the head of the live goat, and confess over him all the iniquities of the children of Israel, and all their transgressions, even all their sins; and he shall put them upon the head of the goat, and shall send him away by the hand of an appointed man into the wilderness. 22And the goat shall bear upon him all their iniquities unto a land which is cut off; and he shall let go the goat in the wilderness.
Leviticus 16:21-22 (Hebrew & JPS 1917)
11כִּ֣י נֶ֣פֶשׁ הַבָּשָׂר֮ בַּדָּ֣ם הִוא֒ וַאֲנִ֞י נְתַתִּ֤יו לָכֶם֙ עַל־הַמִּזְבֵּ֔חַ לְכַפֵּ֖ר עַל־נַפְשֹׁתֵיכֶ֑ם כִּֽי־הַדָּ֥ם ה֖וּא בַּנֶּ֥פֶשׁ יְכַפֵּֽר׃
11For the life of the flesh is in the blood; and I have given it to you upon the altar to make atonement for your souls; for it is the blood that maketh atonement by reason of the life.
Leviticus 17:11 (Hebrew & JPS 1917)
11But Messiah having come as a high priest of the coming good things, through the greater and more perfect tabernacle, not made with hands, that is to say, not of this creation, 12nor yet through the blood of goats and calves, but through his own blood, entered in once for all into the Holy Place, having obtained eternal redemption.
Hebrews 9:11-12 (WMB)