Passage
Thou shalt not be affrighted at them: for the LORD thy God is among you, a mighty God and terrible.
Thou shalt not be affrighted at them: for the LORD thy God is among you, a mighty God and terrible.
Deuteronomy 7:19 The great temptations which thine eyes saw, and the signs, and the wonders, and the mighty hand, and the stretched out arm, whereby the LORD thy God brought thee out: so shall the LORD thy God do unto all the people of whom thou art afraid.
Deuteronomy 7:20 Moreover the LORD thy God will send the hornet among them, until they that are left, and hide themselves from thee, be destroyed.
Deuteronomy 7:21 Thou shalt not be affrighted at them: for the LORD thy God is among you, a mighty God and terrible.
Deuteronomy 7:22 And the LORD thy God will put out those nations before thee by little and little: thou mayest not consume them at once, lest the beasts of the field increase upon thee.
Deuteronomy 7:23 But the LORD thy God shall deliver them unto thee, and shall destroy them with a mighty destruction, until they be destroyed.
The verse centers on "thou", "shalt", "affrighted", "lord", "mighty", and "terrible". It is saying that the verse draws attention to "thou" and "shalt", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 20's "Moreover the LORD thy God will send..." into verse 22's "And the LORD thy God will put...", so "thou" and "shalt" belong inside that flow. In Deuteronomy context, the local focus is covenant, worship, and faithfulness.
A plain takeaway is to answer the verse's own emphasis on "thou" and "shalt" with trust shaped by these words, not by a vague optimism outside the passage.