Rashi on Isaiah
counsels from long ago in true faith Counsels that You advised from long ago to Abraham in the Covenant between the Parts.
Ibn Ezra on Isaiah
My God. The first person singular refers to the prophet, or these are the words which every one of the ancients is represented speaking (24:23).
Rashi on Isaiah
true faith (אֱמוּנָה אֹמֶן). אֹמֶן is like אֹהֶל, tent, אֹכֶל, food, and it is not a verb in present tense but an expression of a noun, obrement (truth) in O.F.