Isaiah 8:13 Commentary: Rashi & Ibn Ezra

He gives you strength Heb. (מַעֲרִיצְכֶם).

אתו Him is added, although את is before the noun, as in many instances; or it means Him alone.²³The repetition is explained as a sign of emphasis. Comp. Gen. 47:21; 1 Sam. 25:29; 2 Kings 9:27; Neh. 9:29. You shall sanctify. That which is holy is usually revered by men; comp. for he is a man of God, he is holy (2 Kings 4:9).

מעריצכם is either an adjective, Your dreadful one, or participle, who in truth makes you fear.²⁴It is God who causes the terror, not the King of Assyria.