לא יתיצב איש בפניכם, פחדכם ומוראכם יתן ה' אלו-היכם על פני כל הארץ אשר בה כאשר דבר לכם, "no man will remain standing upright before you (on account of you); the Lord your God will give the fear of you and the terror of you all over the land on which you set foot, just as He has said.⁠" This verse contains 72 letters corresponding to the 72 letters (number 72) in the tetragrammaton when spelled in a certain manner, adding the following letter to the original one. [י+י-ה+י-הו+י-הוה =72. Ed.]. This name is invoked by people familiar with Kabbalah when they want God to counteract fears experienced on journeys into uncharted territory. When Moses adds the words כאשר דבר לכם, "as He has said to you,⁠" he refers to Exodus 23,27: "the fear of Me I shall send ahead of you.⁠" This is also what Moses had prayed for at the end of the Shirah in Exodus 15,16: "may fear and terror fall upon them.⁠" He wanted the attribute of Justice to be constantly poised against the enemies of the Israelites both then and in the future. This is also the method employed by God in His dealings with the righteous as we know from Psalms 91,11: "for He will order His angels to guard you wherever you go.⁠" This is a reference to God's "sword" which has 16 facets which are instructed to smite the adversaries. I have explained this matter in connection with Genesis 3,24. We have three veses in Scripture referring to this "sword of God" in Leviticus 26,25, Isaiah 27,1 and Genesis 3,24.
In our paragraph the Torah simply assures us that if we keep all the commandments He will deliver into our hands all the far more powerful nations surrounding us and that we would inherit their possessions. This is why the Torah also had to caution us not to be afraid of the pagans. Anyone who is afraid of someone made of flesh and blood is deficient in his trust in God's promise. This is the reason why fear itself is one of the greatest obstacles our soul encounters in its effort to trust God absolutely. Such people may become the architects of their own misfortune although none had been decreed against them. People who are saved from all troubles are the ones who take to heart Deut. 20,5 and Psalms 40,8: "he puts his trust in the Lord.⁠"