The point is this, leave god and all the other stuff out of the equation and deal with the facts. The term "Single Cell" makes an enormously complicated thing sound, well, easy. There are thousands upon thousands of tasks that have to occur in for a single cell organisim to come to be, the probility of each one of those thousands upon thousands of things to occur are far beyond that, , number. BUT WAIT! THERE'S MORE! There is a specific order that they have to happen in and at times with specific timing. That increase that number. . a lot.
OH! Yea! There's more, let's get by all those layers upon layers of improbabilities and get right to the single cell organism, it'll just die. How do vast amount of immensely complex intelligence come into existence on a flook at the right place at the right time and properly administered? It's going to need intelligence just to survive but to divide and become two cell(sounded much simpler than it is)?
Which organ did those cell become first? a brain? Heart? Lung? In what kind of environment did they become organs, I can see a liver swimming around in a pool of primordial gunk like a gold fish and say to the kidneys, "Hay, lets get together tonight".
All the organs need each other simultaneously that is why they use the mothers organs till they are developed enough to continue on there own.