Parshat עקב has another extremely important Pasuk. It begins with the words, מה ה׳ אלוקיך שואל מעמך, “What does Hashem your G-d ask of you?”
Some say that ״מה״ is a hint to the word, ״מאה״ meaning 100 and the need to try to recite 100 blessings every day.
The bigger message that Moshe Rabbeinu is telling עם ישראל is the emphasis on יראת ה׳, loosely translated as fear of Hashem.
The ארחות צדיקים in its introduction points out that three of the greatest Jews, Moshe, David, and Shlomo, all saw יראת ה׳ as the starting point in worshipping G-d.
The Ramban in his famous letter to his son, told him that if he can conquer anger, he will be able to get to the level of יראה. And יראה is the key to other great things such as humility, love of G-d, and learning to be happy with one’s lot, שמח בחלקו.
The מסילת ישרים in its introduction, recommends that every Jew make a daily assessment of his אהבה and יראה. So we see the importance of יראת ה׳.