"God's Name" joke

Forrest Gump dies and goes to heaven.
The gatekeeper at the gate to heaven says, ''There are too many people in heaven so you have to pass this quiz to get in.''
Forrest Gump says, ''Okay.''
The gatekeeper says, ''First question: What two days of the week begin with T?''
Gump replies, ''That's easy. Today and tommorrow.''
The gatekeeper says, ''Well, I didn't think of that so I'll give it to you.
Second question: How many seconds are in a year?''
Gump says, ''12, January 2nd, February 2nd...''
The gatekeeper says, ''That wasn't what I was thinking, but I'll give it to you.
Last question: What is God's first name?''
Gump replies, ''Howard.''
The gatekeeper says, ''How on earth did you get Howard?''
Gump says, ''It's common sense. Our father, who art in heaven, Howard be thy name.''