The burden is on the atheist:

1) Explain how something can come from nothing,

OR

2) Explain how infinite regress is possible even though you would have happened already,

AND

3) Find a naturalistic explanation to account for the eyewitness testimony of the Apostles.

If you can't do this, it shows you are going to Hell. God's proof is very simple so nobody is "without excuse" (Rom. 1.20).