From an egg to a chicken to an egg to a chicken , but who gave birth to the first egg? Where did it all start?

Hey guys. I found this in a book i was reading. Be blessed and share it with others :)

Have you ever wondered how everything in the world began? I suppose so. Most boys and girls do some time or other.
Those beautiful flowers in your garden, for instance-sweet peas, roses, asters,hollyhocks,pansies- where did they come from?
"Seeds," You say.
True, but where did those seeds come from?
From other flowers, of course,and those flowers from still other seeds, and so on back to - well, back to where?
There's your dog. Where did he come from?
" We got him as a puppy," you say. " And he has a very fine pedigree."
So! That means you know his father's name, and maybe his grandfather's.But how about before that?
One thing you can be very sure of. Your dog's grandfather was once a puppy too, and he had a father, and a grandfather, and so on back to - back to - well, back to when?
Then there's that rooster in your neighbour's yard that's crowing all the time. Where did he come from?
" An egg," you say.
Right. But a hen laid that egg didn't she? To be sure she did. And she came from an egg herself not so long ago. And  that egg was laid by another hen, and so on back to -back to- well, back to whom?
Then there's yourself. Where did you come from?
" Oh," you say, "mother brought me home from the hospital."
I suppose she did. But mother was a little baby once herself, wasn't she? And so was her mother, and her grandmother, and her great-grandmother, and so on back to - back to - well, back to whom?
Think of the mountains too and the wooded hills, the flowing rivers and the sand on the seashore-all the wonderful things of nature. Were they always here,just as you see them now? Or did they too have a beginning? And if so, when and how?
Many great men have tried to explain these things. And they have come up with all sorts of strange ideas and suggestions, most of them far from the truth.
There is only one place where you will find the true story, and that is in the Bible. If you open this wonderful Book,you will find that the very first part is called Genesis, meaning The Book of Beginnings. Here you will find the answer to all your questions.