Answer:
The Constitution specifically grants Congress its most important power — the authority to make laws. ... These include the power to declare war, coin money, raise an army and navy, regulate commerce, establish rules of immigration and naturalization, and establish the federal courts and their jurisdictions.
Explanation:
Since laws are being added and amended over time, the system to amend these laws is very important. Over time things change and laws must be adjusted to fit the rising conflicts or changes being instated by the legislative system and brought upon by the people. If there wasn't a system that would allow laws to be amended, then there would mass conflict and problems in regards to the freedom of the people, because it rests within the laws that are being created and instated upon them.