PARASHA KITAVO
And it shall be, when you come into the land…you shall take of the first of all the fruit of the earth, which you shall bring of your land that the L-rd your G-d gives you (Deut. 26:1-2) One of the reasons for the mitzvah of bikurim, first fruits, is that bringing the first of the land's produce to the Holy Temple negates the mistaken notion that the fruits are the result of the farmer's efforts and agricultural acumen. The mitzvah reminds him that all of the earth's bounty is ultimately dependent on G-d's blessing, and nothing else. (Akeidat Yitzchak)
All these blessings shall come on you, and overtake you (Deut. 28:2) At first glance the word "vehisigucha" is redundant. If "all these blessings" are fulfilled, isn't it obvious that their recipient would be "overtaken" by them? Rather, the Hebrew word is related to hasaga, attainment or comprehension. It sometimes happens that a person is blessed with wealth, yet he lacks an understanding of how to use it properly. "Vehisigucha" is thus a separate blessing, that the person have the wisdom to utilize G-d's abundance correctly. (Rabbi Sh. Y. Taub of Modzhitz)
And all people of the earth shall see that you are called by the name of the L-rd, and they shall be afraid of you (Deut. 28:10) Through you, the Jewish people, the nations of the world will acquire fear of G-d. Because "you are called by the name of the L-rd", it will influence the people around you, and they will come to fear Him. (Butzina D'Nehora)
And G-d shall make you plentiful for good, in the fruit of your body (Deut. 28:11) The Torah promises length of days and good years – even beyond what is truly deserved – in the merit of children who are raised and educated according to Torah. (Torat Moshe)