The Law of Biogenesis states:
Life arises from pre-existing life, not from nonliving material.

How and when did life originate on this planet?

From a naturalist Viewpoint:

Paul Davies is an internationally acclaimed physicist, cosmologist, and astrobiologist at Arizona State University. In New Scientist, Vol. 179 (2403):32, July 12, 2003 stated: "It's a shame that there are precious few hard facts when it comes to the origin of life... the how part has everybody stumped. Nobody knows how a mixture of lifeless chemicals spontaneously organized themselves into the first living cell."

Dr. George Wald, Harvard University biochemist and Nobel Laureate, once stated in Scientific American Vol. 190, August 1954, p. 48: "Time is in fact the hero of the plot. ... Given so much time, the 'impossible' becomes possible, the possible probable, and the probable virtually certain. One has only to wait: time itself performs the miracles."

Franklin M. Harold, Professor of Biochemistry and Molecular Biology at Colo State U., The Way of the Cell, 2001, p. 236. Stated: "Life arose here on earth from inanimate matter, by some kind of evolutionary process, about four billion years ago. This is not a statement of demonstrable fact, but an assumption almost universally shared by specialists as well as scientists in general. It is not supported by any direct evidence, nor is it likely to be, but it is consistent with what evidence we do have."

"All things were made by him (Jesus); and without him was not any thing made that was made."
John 1:3

"Happy is he that hath the God of Jacob for his help, whose hope is in the LORD his God:
Which made heaven, and earth, the sea, and all that therein is: which keepeth truth for ever:"
Psalm 146:5-6

Stanley Miller and Harold Urey devised an experiment that was designed to prove the possibility of life coming into existence by the right mixture of chemicals.  The success or failure of that experiment has been debated.

In Holt Biology 2006, on page 254 it states: "We now know that the reductant molecules used in Miller's experiment could not have existed in abundance on the early Earth.  Four billion years ago, Earth did not have a protective layer of ozone gas, - Today ozone protects Earth's surface from most of the sun's damaging ultraviolet radiation.  Without ozone, ultraviolet radiation would have destroyed any ammonia and methane present in the atmosphere."  This raises a very important question: If the chemicals needed to form life were not in the atmosphere, where did they come from?

When these gases are absent from the Miller-Urey experiment, key biological molecules are not made.  They also did not include oxygen, even though it is believed oxygen did exist in abundance in earth's early atmosphere.  The existence of oxygen however would have ruined the experiment.

Holt Biology goes on to say: "Some scientists argue that the chemicals were produced within ocean bubbles.  Others say that the chemicals arose in deep sea vents.  The correct answer has not been determined yet."

The only scientific hypothesis being given by naturalists at this time is that life came into existence from the right mixture of chemicals coming together under the right conditions.  However, a known law of science (Biogenesis) indicates that life does not come from non-life, but only from other life.
The Bible says that God created all life, and He put life here on this planet about 6,000 years ago for a purpose.

If the Bible is true, then there should not be any scientific evidences that would indicate this could happen through natural processes.  All evidence should point toward life being a miracle.  If the naturalists are correct, life should be observed coming from non-life; or they should be able to produce life in a laboratory experiment.

Left-handed Amino Acids

1. A mixture of left-handed and right-handed amino acids is a poison to life.

2. All biological proteins (all life) contain 100% left-handed amino acids.

3. When a living organism dies, the natural property of amino acids is to revert to a mixture (left-handed and right-handed).

4. When a solution of left-handed amino acids is left alone, the amino acids slowly alter until the solution becomes approximately a mixture of 50/50 right-handed and left-handed amino acids.

In "life" or "death," the natural tendency is half left-handed amino acids, and half right-handed. All life forms are made up of 100% left-handed amino acids. 

The Law of Biogenesis

In Glencoe Biology, 2006, p. 381 it stated: "Finally, in the mid-1800s, Louis Pasteur designed an experiment that disproved the spontaneous generation of microorganisms.  From that time on, biogenesis, the idea that living organisms come only from other living organisms, became a cornerstone of biology."  On page 382 it stated: "Biologists have accepted the concept of biogenesis for more than 100 years."

A known law of science states that life comes only from other life.  Abiogenesis states that life came from non-life, but it has never been observed, nor produced in a laboratory experiment.

Robert Gange, Ph.D. (research scientist with extensive research in the field of cryophysics and information systems.), Origins and Destiny, 1986, p. 77 stated: "The likelihood of life having occurred through a chemical accident is, for all intents and purposes, zero."