קבלה אויף ישעיהו 29:23

Now, this is the secret of the words said at the beginning of the Amidah prayer,⁵¹⁷Deuteronomy 10:17; See the liturgy of the beginning of the Amidah prayer. “Blessed are you HaShem-יהו"ה, our God and God of our fathers, the God of Avraham, the God of Yitzchak and the God of Yaakov, the Great, the Mighty and the Awesome God-HaE”l HaGadol HaGibor v’HaNorah-הא״ל הגדול הגבור והנורה etc.” We clearly see, that after mentioning, “The God of Avraham, the God of Yitzchak, and the God of Yaakov,” we mention their qualities, “The Great, the Mighty and the Awesome God - HaE”l HaGadol HaGibor v’HaNorah-הא״ל הגדול הגבור והנורה.” Now, the great sign for this median quality of “Awesome-Norah-נורא” in the Chariot (Merkavah) is the verse,⁵¹⁸Exodus 15:11 “Who is like You, strengthened in holiness, too awesome-Norah-נורא for praise, Doer of wonders!” That is, holiness-Kedushah-קדושה was given over to Yaakov, meaning that it is Yaakov who is strengthened with the Upper Holiness, as it states,⁵¹⁹Isaiah 29:23 “They will sanctify the Holy One of Yaakov-Kedosh Yaakov-קדוש יעקב.”