In the bible, Sarah age 90 already menopaused and yet can still gave birth. ?

You are overlooking who said she can have a baby.With natural man it is impossible. But we see a super( above) natural being speak and do.Naturally speaking there was no way that John in revelations could have foreseen satelite tv being able to see Jesusalem from all over the world at one time. But he prophecized that is exactly what would happen. Our technology does not impress God at all.He spoke and slung this universe into existence. What is it to speak and a 90 year old woman having a baby .Your problem is you think on a low carnal level.Maybe because you believe you came from pond soup.Therefore you do not look any higher for answers.