In Sefer Mishlei: “Trust in Hashem with all your heart, and do not rely on your own understanding” (Mishlei 3:5). Shlomo HaMelech, alav hashalom, meant: a person should place his trust in Hashem, complete trust, for whatever he needs, and he should not rely on his understanding, saying that through his understanding he can work for what he needs; rather, he should place his trust in Hashem. For even though he must do all his deeds with wisdom, and we do not rely on miracles, even so he should not rely on his understanding alone, saying that his wisdom will bring about what he wants to do; rather, let him trust in Hashem, that He will bring what he has planned and wants to do into action. It says el Hashem, “to Hashem,” and not baShem, “in Hashem,” because it speaks of the time of action: at that time he should direct his thought and his trust to Hashem, that He be with him, and this is like a prayer to Hashem. Whereas “Trust in Him” (Tehillim 62:9) is said of a person placing his trust in Him, and does not speak of the time of action. El Hashem, “to Hashem,” means that at the time of action he should direct his trust and his thought to Hashem, that He help him in all that he must work at. For when he trusts in Him and does not rely on his understanding, then Hashem fulfills his request. And this is what the pasuk says (Mishlei 29:25), “A person’s trembling sets a trap [for him], but one who trusts in Hashem will be made strong.” It means: when a person trembles, this shows how little trust he has in Him, and this sets a trap for him; for it is the opposite of what it says, “one who trusts in Hashem will be made strong,” which means that he grows ever stronger through the trust he has placed in Him. When he trembles, it shows that he has no trust at all, and this is a trap for him.