Final answer:
The best sentence supporting the government's obligation to citizens is from the Declaration of Independence, emphasizing that it is the government's duty to secure citizens' inalienable rights. Additionally, the Constitution and Hamilton's discourse affirm governmental responsibility to the common welfare and the right to tax to fulfill these duties.
Step-by-step explanation:
The sentence from the excerpt that best supports the idea that the government has an obligation to provide certain things to its citizens is "It is government's duty to secure rights, and if it fails, then '...it is their right, it is their duty, to throw off such Government, and to provide new Guards for their future security.'" This sentence is influenced by natural rights philosopher, John Locke, and is found in the Declaration of Independence. It highlights the concept of the social contract, specifying that the government has a responsibility to ensure its citizens' inalienable rights are protected.
Furthermore, the statement from Alexander Hamilton's 'Tully No. II' demonstrates another aspect of government obligation, by indicating that Congress's power to tax is essential to fulfill its role in paying debts and providing for the common defense and welfare, which is an obligation that the government has to manage responsibly.
Lastly, the Constitution itself outlines the role of government, particularly in the clause 'The Congress shall have power to lay and collect taxes, duties, imposts, and Excises, to pay the debts, and provide for the common defence and general welfare of the United States,' which ties into the government's obligation to serve its citizens' needs and ensure general welfare through legislative powers; thus, indicating that certain provisions are to be ensured by the government for the people.