וּבָ֧א עָלַ֣יִךְ רָעָ֗ה לֹ֤א תֵדְעִי֙ שַׁחְרָ֔הּ וְתִפֹּ֤ל עָלַ֙יִךְ֙ הֹוָ֔ה לֹ֥א תוּכְלִ֖י כַּפְּרָ֑הּ וְתָבֹ֨א עָלַ֧יִךְ פִּתְאֹ֛ם שׁוֹאָ֖ה לֹ֥א תֵדָֽעִי׃
Kaya darating sa iyo ang kasamaan, at hindi mo malalaman kung kanino ka hihingi ng saklolo laban dito; babagsak sa iyo ang kapahamakan na hindi mo kayang alisin; at biglang darating sa iyo ang pagkawasak na hindi mo namamalayan.
Rashi
you shall not know how to remove it by prayer Heb. לֹֹא תֵדְעִי שַׁחְרָהּ. You shall not know to pray about it (Jonathan). Whom will you beseech to extricate you therefrom?
Ibn Ezra
יום רעה═רעה A day of evil.15A. V., Evil. I. E. supplies יום the day of because of the masculine form of the verb ובא.
Rashi
to rid yourself of it Heb. כַּפְּרָהּ, to wipe it away and to remove it, and this is every expression of atonement (כַּפָּרָה). It is an expression of wiping and taking away.