Atheists and theists alike have calculated the probability that life could arise by chance from nonliving chemicals. The figures they calculate are astronomically small—virtually zero. For example, Michael Behe has said that the probability of getting one protein molecule (which has about 100 amino acids) by chance would be the same as a blindfolded man finding one marked grain of sand in the Sahara Desert three times in a row. And one protein molecule is not life. To get life, you would need to get about 200 of those protein molecules together!
I Don’t Have Enough Faith to be an Atheist by Frank Turek and Norman L. Geisler