If you want, you can stop reading this post now. If you have no idea what I'm talking about, please read on. The Declaration of Independence that created the entity known as the United States begins with this preamble:
We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain inalienable Rights. . .
Our Creator endowed us with certain inalienable rights. The law of the Constitution does not grant rights to individuals. In fact, the wording of the second amendment includes the phrase "the right of the people to keep and bear arms shall not be infringed.". Therefore, this amendment to the law of the land was to prevent the creation of a law that would infringe upon a right that is already possessed. The law of our Creator is the law that grants us our rights, and it was against the taking away of those rights which our forefathers were concerned. It was that very issue that brought us to war with England, and it was that very issue with which James Madison, Thomas Jefferson and others penned the second amendment.