And thou shalt remember all the way through which the Lord thy God hath brought thee for forty years through the desert, to afflict thee and to prove thee, and that the things that were known in thy heart might be made known, whether thou wouldst keep his commandments or no.
Deuteronomy 8:1 All the commandments, that I command thee this day, take great care to observe: that you may live, and be multiplied, and going in may possess the land, for which the Lord swore to your fathers.
Deuteronomy 8:2 And thou shalt remember all the way through which the Lord thy God hath brought thee for forty years through the desert, to afflict thee and to prove thee, and that the things that were known in thy heart might be made known, whether thou wouldst keep his commandments or no.
Deuteronomy 8:3 He afflicted thee with want, and gave thee manna for thy food, which neither thou nor thy fathers knew: to shew that not in bread alone doth man live, but in every word that proceedeth from the mouth of God.
Deuteronomy 8:4 Thy raiment, with which thou wast covered, hath not decayed for age, and thy foot is not worn, lo this is the fortieth year,
The verse centers on "thou", "shalt", "remember", "through", "lord", "hath", "brought", and "thee". 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 1's "All the commandments that I command thee..." into verse 3's "He afflicted thee with want and gave...", 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.