“One who considers a matter wisely will find good, and one who trusts in Hashem is fortunate” (Mishlei 16:20). This pasuk comes to warn a person that he should first consider in his heart whatever he wants to say or do, before he speaks or before he does the deed: which way it will turn out for him, so that success and benefit will come to him from it; and if he does so, he “will find good.” And so it says further, “One who holds back his words has knowledge” (Mishlei 17:27). Because a person’s actions are contained in three things, thought, speech and deed, as it is written, “In your mouth and in your heart, to do it” (Devarim 30:14), and he is made up of and steeped in the evil inclination, and always errs because he is drawn after the physical, therefore Shlomo warned here that a person should first consider the thing he wants to say, and put thought before speech and before deed. “And one who trusts in Hashem is fortunate”: when he considers and reflects on what he seeks to do, even though he has first considered it in his heart, it is not fitting for him to rely on what he has considered; rather, he should trust in Hashem that the thing will come to be done and reach complete success. This is what it says, “And one who trusts in Hashem is fortunate.” That is, after thought has been applied to that speech or that deed, if he hangs his trust on Hashem, and agrees in his mind that it is not in the power of his intellect to bring anything about except by the will of Hashem, he is fortunate. For trust in Hashem is one of the highest middos and one of the foundations of the Torah; and so the pasuk says, “Trust in Hashem with all your heart” (Mishlei 3:5).