Shouldn't there be the definite article at the beginning of the First Amendment to the US Constitution? [duplicate]

The First Amendment to the United States Constitution reads as follows:

Congress shall make no law respecting an establishment of religion, or prohibiting the free exercise thereof; or abridging the freedom of speech, or of the press; or the right of the people peaceably to assemble, and to petition the Government for a redress of grievances.

Shouldn't there be the definite article ("the") before the first word "Congress"? Or is there a reason to omit it?

"Congress" is a proper noun so it doesn't need an article. To put it another way: Why would you want to specifically mention something when it's already been specifically mentioned?

Anyway the logic regarding articles can get pretty tricky: