바이크라 (레위기) 23:27

אך — The words אך and רק wherever they occur in Scripture have a limitative force; here the word implies: it (Yom Kippur) makes expiation for those who repent, but it does not make expiation for those who do not repent (אך... יום הכפורים הוא — in a limitative sense it is Yom Kippur) (Shevuot 13a; cf. Rashi on Exodus 34:7).

אַ֡ךְ בֶּעָשׂ֣וֹר לַחֹ֩דֶשׁ֩ הַשְּׁבִיעִ֨י הַזֶּ֜ה י֧וֹם הַכִּפֻּרִ֣ים ה֗וּא מִֽקְרָא־קֹ֙דֶשׁ֙ יִהְיֶ֣ה לָכֶ֔ם וְעִנִּיתֶ֖ם אֶת־נַפְשֹׁתֵיכֶ֑ם וְהִקְרַבְתֶּ֥ם אִשֶּׁ֖ה לַיהֹוָֽה׃

Also on the tenth day of this seventh month there shall be a day of atonement: it shall be a holy gathering to you; and you shall afflict your souls, and offer an offering made by fire to the Lord.