Does man not consider that We created him from a [mere].."

Does man not consider that We created him from a [mere] sperm-drop – then at once he is a clear adversary?

And he presents for Us an example[1] and forgets his [own] creation. He says, "Who will give life to bones while they are disintegrated?"

Say, "He will give them life who produced them the first time; and He is, of all creation, Knowing."