There is no concept that approximates a singularity other than NOTHINGNESS.
If I pointed you to something that has no spatial dimension and does not exist in time, you're not going to give me the benefit of the doubt, are you?
In fact, you'd think I'm simply insane.
But when its inevitable alternative is the existence of a creator, you find the 'insane' more intellectually palatable?
A creator would have to exist in this place that has no spatial dimension that does not exist in time, or at least something outside of the universe - a very wierd place in regards to the laws of the universe. So if he exists in this 'insane' place, his existence is just as, if not more 'insane'.
We have already gone through this. Remember the flatness problem?
The only way that the universe has existed for 13 billion years is through a CONTRIVED balancing act between the tensile and compressive tendencies of lambda and matter/energy.
Statistically, that is equivalent to winning the jackpot in the lottery for one week straight. No self-respecting physicist is going to accept that.
The alternative, a varying speed of light that would inherently regulate this balance. The consequence -- mass and energy are not conserved -- which means, they are CREATED AND ANNIHILATED IN A COSMOLOGICAL SCALE. Not to mention einstein turning in his grave for making such a suggestion.
The conclusion -- however uncomfortable you might feel about it -- is INEVITABLE
So the universe's existence is an amazing thing - too amazing. It doesn't mean its some bloke with a big beard on a cloud does it?? I admit there is a creating force, but what that creating force is cannot be proved through the cosmological argument.