Agency is an agreement by which one person (the principal) gives another party (the agent) authority to act on his behalf. Usually, the agent is given authority to enter certain types of contracts...
The president, if not for the ability of congress to create independent agencies, would be the only one able to create an agency. This helps agencies, when created, to not immediately be disbanded...
No. Only the executive branch (President) has the actual authority to create administrative agencies. The legislative branch makes the laws, the judicial branch interprets the laws and the executive...
God did not use any agency external or separate from Himself, but Jesus Christ as God Himself was the one involved in creation, as is made clear by the following three key New Testament passages...