What is government?
The government is the group of people who control a political entity (town, state, country) at a given time.
When we speak of "the government" we are referring both to elected officials and to the unelected bureaucrats who carry out their orders. So, in the United States, the government includes the President and the Congress and the Supreme Court (not elected, but still part of government). But it also includes all the people who work to enforce the laws. It includes the people who work for the IRS and ensure that we pay taxes. It includes the people who work for Social Security and make sure that retired people get their checks. It is all the people who make the rules and those who carry them out.