Passage
Beware that thou forget not the Lord thy God, not keeping his commandements, and his lawes, and his ordinances, which I commaund thee this day:
Beware that thou forget not the Lord thy God, not keeping his commandements, and his lawes, and his ordinances, which I commaund thee this day:
Deuteronomy 8:9 A land wherein thou shalt eate bread without scarcitie, neither shalt thou lacke any thing therein: a land whose stones are yron, and out of whose mountaines thou shalt digge brasse.
Deuteronomy 8:10 And when thou hast eaten and filled thy selfe, thou shalt blesse the Lord thy God for the good land, which he hath giuen thee.
Deuteronomy 8:11 Beware that thou forget not the Lord thy God, not keeping his commandements, and his lawes, and his ordinances, which I commaund thee this day:
Deuteronomy 8:12 Lest when thou hast eaten and filled thy selfe, and hast built goodly houses and dwelt therein,
Deuteronomy 8:13 And thy beastes, and thy sheepe are increased, and thy siluer and golde is multiplied, and all that thou hast is increased,
The verse centers on "beware", "thou", "forget", "lord", "keeping", "commandements", "lawes", and "ordinances". It is saying that the verse draws attention to "beware" and "thou", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 10's "And when thou hast eaten and filled..." into verse 12's "Lest when thou hast eaten and filled...", so "beware" and "thou" 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 "beware" and "thou" with trust shaped by these words, not by a vague optimism outside the passage.