Why should I let you in?

A couple of Christians were out evangelizing, and they came across a man at his house. Upon seeing them, the man knew what was coming. He quickly ran inside the house and shut the door. But the two Christians knew that there was a chance to talk to this man. They went in and politely knocked the door.

"Sir would you like to have a chat with us? Could you open the door for us, please?"
"NO! Please go away. I know what you wana say. And i DONT believe in God at all. He doesn't exist.I am an atheist."
"But sir, how can you really be 100% sure there is no God? I mean what is your evidence?"
"I dont need to give evidence! He is not REAL. Now go away!"

"Alright alright sir, we will. But just a ponder for you, lets say IF God does exist, and you die an arrive at the gates of heaven, He will ask you 'WHY SHOULD I LET YOU INTO MY HEAVEN?' You might want to give it some thought "

"Why??!?! WHY SHOULDN'T HE LET ME IN?"

"Well sir, you closed the door on us. And we politely knocked so that we hope you would let us into your house. Why should you not let us in?

"WHY SHOULD I?! This is my house and i tell you EXACTLY where to go!"

"Exactly sir. God would tell you the same thing if you went to heaven and want to get in."

The man was shocked. And he kept silent for a moment.

"Alright. FINE. You win. But i still dont believe there is a God. I dont need to know there is a God or not."

"But sir, HOW sure are you there isnt a God that exists? Based on what evidence? Can you really be sure a God doesnt exist? I mean look at all the evidence that points to something of a creation thats exists rather than an accident by chance"

"Alright MAYBE He does exist. But i dont believe in Him and i dont think He even cares for me."

"Ah sir, so you acknowledge His existence?"

"Well yea sort of."

"But how do you know He doesnt even care for your life? You havent even asked Him if He does care. All this while you have been rejecting Him. How would you expect Him to care if you keep saying No to Him? Its very simple logic sir"

"OK. I may not know Him well enough. I may not know if He really cares for me or not. But what has that got to do with me and my own life?"

"Sir, it has EVERYTHING to do with your life."

"So what are you trying to say?"

"Well sir we just want to say that, you should let us in for a chat and some coffee."