Answer:
This quote is located in the preamble of the Bill of Rights. This quote means that the sole purpose of the amendments that we call “bill of rights” was to prevent the federal government from “misconstruing or abusing its powers.” to do so, “further declaratory and restrictive clauses” were recommended.
Those clauses are seen in each Amendment, that have restraints on the powers of the federal government. All of them aim to prevent misconduct from the government, for example in Article I, you can see: “Congress shall make no law…”