Understanding Salesmen

A knock at the door means
Hello, Jesus calls
A ring on the phone means
A trip to Niagara fallsDaddy, don't let me down this time
I'm all alone inside my mind
And it's no small thing
That I must prove to youA late night card game
With the guys is alright
But I would rather take you
For a test driveDaddy, don't let me down this time
I'm all alone inside my mind
And it's no small thing
That I must prove to youWhile I look out
On the passing fields
The sun through the bugs
On the windshield
Makes me feel like I don't matterA knock on the door means
Hello, Jesus calls
A ring on the phone means
A trip to Niagara falls