The Feds are coming to arrest me probably because I post bible prophecies or this is a scam

I just got a letter saying the FBI has an arrest warrant on me:

This is to inform you that we the fbi have a warrant to arrest you if we dont hear from you immediately,this is the final warning you are going to receive from the fbi office do you get me? I hope youre understand how many times this message has been sent to you. We have warned you so many times and you have decided to ignore our e-mails we have been instructed to get you arrested immediately, and today if you fail to respond back to us with the payment then, we will close your bank account and jail you and all your properties will be confiscated by the fbi.

Robert Mueller, III FB I Director

This is probably a scam from someone posing as an FBI director.

If this is real, then I'm going to be locked up forever.

Please Keep me in your prayers and I'll see you in Heaven if this letter is real.