Paley’s argument from design says:
(3) So, by analogy, we can conclude they were made by an intelligent being, and this is God.
Hume objected that although we know how artifacts like watches are made, we have no knowledge of how nature and living things are made, so for all we know nature and living things are produced by a non-intelligent mechanism.
Darwin argued that the nonintelligent mechanism of evolution through natural selection, working over millions of years, can produce living things whose parts appear to be designed by an intelligent being to achieve some purpose.
Defenders of the argument from design argue that even if evolution is a fact, the believer can still hold that evolution is the means by which God produces living things and their parts.
Dembski, a proponent of intelligent design, argues that the “specified complexity” (the directedness and improbability) of genes implies they were produced by an intelligence and not by chance or by natural laws.
Others argue that if the features of the universe that make human life possible were slightly different, human life could not exist.
It is so improbable that a universe would have these features out of an infinite range of other possible features that they had to be deliberately selected to make human life possible (the anthropic principle).
God selected them.
Critics of this new argument say that for all we know, some physical process, not God, selected the features that make life possible.