Okay, I saw people saying God randomly said "Murder will come on you Avenged Sevenfold"... uhhh... what? Here's the real
definition.
The band name is from Chapter Four of Genesis (Hence the song "chapter four") in which Cain kills his brother Abel, because Cain feels God is not as
interested in his burnt offerings. When God finds out what has happened, he sends Cain to live away for the rest of his life. God says if any man is to hurt Cain, he shall be avenged sevenfold.
This is
the story where the kickass band got their name from.