When I used to argue with a Rabbi that I know, all he would say is ..... ooohh who created evolution? Oh, who created the big bang? Everything created must have a creator! Right? Are we sure? O.o Anyways this line of reasoning invites the contradiction of who created God, which is a contradiction that could be handled if the rabbi were to have taken a real philosophy class.
The cosmological argument goes like this-
1) The universe is in motion.
2) Everything in motion has to have something putting it in motion.
3) It is impossible for point 2 to be an infinite process because then there would be no first mover in the first place and thus no motion in the universe at all.
4) Thus by necessity, something infinite had to have already existed in order to create the finite physical universe.
Can we really be sure by merely an a priori method that the universe is finite? Or that time is finite? What if the universe goes through an endless process of expansion and contraction and expansion again? Can the cosmological argument in fact be the truth, except as a natural process and not in a theological way? Are we absolutely sure that everything in motion has to have something putting it in motion? The laws of physics could be different in different parts of the universe. We don't know. Is there a such thing as a being of pure infinity? With all this is mind, it don't mean that the cosmological argument for God is impossible. It's just not the be all end all.