Kabbalah zu Tehillim 25:2
אֱֽלֹהַ֗י בְּךָ֣ בָ֭טַחְתִּי אַל־אֵב֑וֹשָׁה אַל־יַֽעַלְצ֖וּ אֹיְבַ֣י לִֽי׃
Mein Gott, auf dich vertraue ich; o dass ich nicht zu Schanden werde! Dass nicht meine Feinde über mich jubeln!
Zohar
Another explanation, "Trust in Hashem forever" - a person has to strengthen himself in the Holy One, blessed be He, throughout his life. No one can harm one who properly places his trust and strength in Him, since one who places his strength in the Holy Name endures forever.
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