Isaiah 42:6 Kabbalah

אֲנִ֧י יְהוָ֛ה קְרָאתִ֥יךָֽ בְצֶ֖דֶק וְאַחְזֵ֣ק בְּיָדֶ֑ךָ וְאֶצָּרְךָ֗ וְאֶתֶּנְךָ֛ לִבְרִ֥ית עָ֖ם לְא֥וֹר גּוֹיִֽם׃

I the LORD have called thee in righteousness, And have taken hold of thy hand, And kept thee, and set thee for a covenant of the people, For a light of the nations;

Read kabbalistic (mystical) interpretation of Isaiah 42:6: and classical mystical sources.