Under the articles of confederation, congress was granted powers that were in scope and authority.

Under the article of confederation, congress was granted powers that were narrow in scope and authority. Powers established to the federal administration in the articles of confederation stand to define peace and war, resolve arguments between states, and create and control the interstate post organizations. The congress named congress of the confederation in the articles that is constructed upon the organizations of the second continental congress and as such was a unicameral body where each state had one vote. The article offers for the yearly selection of representatives to the congress for the reminiscence of representatives and for the least and largest quantity of delegates that will make up respectively states designation. 

Because broadest terms allows the law flexibility depending on changing society and circumstances.