Passage
For Moses lays down in writing the righteousness which is of the law, The man who has practised those things shall live by them.
For Moses lays down in writing the righteousness which is of the law, The man who has practised those things shall live by them.
Romans 10:3 For they, being ignorant of God's righteousness, and seeking to establish their own [righteousness], have not submitted to the righteousness of God.
Romans 10:4 For Christ is [the] end of law for righteousness to every one that believes.
Romans 10:5 For Moses lays down in writing the righteousness which is of the law, The man who has practised those things shall live by them.
Romans 10:6 But the righteousness of faith speaks thus: Do not say in thine heart, Who shall ascend to the heavens? that is, to bring Christ down;
Romans 10:7 or, Who shall descend into the abyss? that is, to bring up Christ from among [the] dead.
The verse centers on "moses", "lays", "down", "writing", "righteousness", "practised", "things", and "shall". It is saying that the verse draws attention to "moses" and "lays", so its meaning should be read from those terms before moving to application.
The nearby context moves from verse 4's "For Christ is the end of law..." into verse 6's "But the righteousness of faith speaks thus...", so "moses" and "lays" belong inside that flow. In Romans context, the local focus is righteousness by faith, union with Christ, life in the Spirit, and God's covenant faithfulness.
A plain takeaway is to answer the verse's own emphasis on "moses" and "lays" with trust shaped by these words, not by a vague optimism outside the passage.