The use of the term "spontaneously create" is a reference to the omnipotence of the Creator. Either we accept that He made this creation - or we go with the scientists and their crazy "big bang" idea. If the latter then we need to embrace the concept that physical matter can create itself somehow. This would negate the basic principle of all belief in His omnipotence, that sentience can create insentience but not the other way around.
For example - your deeper skin layers and your blood carry the sentient force of life in them. If there is damage to any part with which they come in contact then they can create a repair or a new part. This power to repair comes from sentience.
On the other hand your finger nails and any hair on your body, although they are created by the sentient life force in the body, they are not in themselves sentient (i.e. they do not carry a sentient life force) or in common language 'they are dead matter' even though they are still an essential part of your body. Nails and hair cannot repair themselves if damaged, neither can they repair any other part with which they come into contact. This is an imperfect analogy - which is an attempt to explain the principle that sentience can create insentience but not the other way around.
Hence the 'big bang' idea is flawed because it involves only insentient matter which could never become alive in the way we see all living things. Dead matter cannot create living creatures. And since we see that there are living creatures - then we must come back to rely on the omnipotent Creator.
So if we accept that the Creator is the principle and omnipotent (all powerful) sentient force in the universe, then He has no limits to what He can do. He has delegated this mundane function to Mother Nature - so that He can sit back 'as it were' and keep a watchful eye over all that goes on while She gets busy with all the detailed running of things. Hence She must carry that omnipotence as an inheritance from Him. So She can create from air, fire, water and earth any form which she wishes spontaneously. There is no doubt about it. Creatures do not have to change from one form into another. If we go down the route of doubt about this we end up with the unsolvable "which came first the chicken or the egg". i.e. was it a microbe or amoeba which came as the first living creature.
In Genesis 11 & 12 it says - And God (the Creator) said (Willed) let the earth bring forth grass, the herb yielding seed, and the fruit yielding fruit after his kind, whose seed is in itself; and it was so. And the earth brought forth grass, and herb yielding seed after his kind, and the tree yielding fruit, whose seed was in itself, after his kind. And God saw that it was good.
This is a statement of a basic principle. That first life forms are spontaneously created (by Him or Him in the form of His secret agent), after that they reproduce with their seed (or sperm or whatever). It does not say that He created the seeds and planted them. So the answer to the question, "which came first the chicken or the egg?" is that the Creator came first with the knowledge of how to create a chicken (i.e. not an egg).
We should not fall in to the limiting idea that the Creator has created all this and retired from it all. He still has the power to do anything He wishes at any time. He was not made less by bringing this creation into being. He is here and now with us. (The Kingdom of God is at hand) i.e. is right here now.
We must accept the authority of the scripture. Because it has originated from the perfect minds of those great and holy human beings who have seen with their own intellect the things which they have attempted to describe for us. Any human language will show up deficiencies when it tries to explain the unexplainable - so we must allow for that when we read scripture. And remember all we ever read in English has been through the mill many times with translation and language change, word meaning change etc. So the original power in some scripture has been a bit lost.
Sorry its a bit of a drawn out answer - but your query was a very important one and very relevant . I have tried my best to explain.
Science tell us that something can come from nothing..
I don't have a problem with a Big Bang when God spoke the world in to existence. Let there be light - and POW!!