Deuteronomy 9:2 Kabbalah

עַֽם־גָּד֥וֹל וָרָ֖ם בְּנֵ֣י עֲנָקִ֑ים אֲשֶׁ֨ר אַתָּ֤ה יָדַ֙עְתָּ֙ וְאַתָּ֣ה שָׁמַ֔עְתָּ מִ֣י יִתְיַצֵּ֔ב לִפְנֵ֖י בְּנֵ֥י עֲנָֽק׃

a people great and tall, the sons of the Anakim, whom thou knowest, and of whom thou hast heard say: ‘Who can stand before the sons of Anak?’

Read kabbalistic (mystical) interpretation of Deuteronomy 9:2: and classical mystical sources.