I disagree strongly with this and you have presented no evidence, biblical or otherwise, to support this claim.
Well then this must be the first abortion thready you've taken a look at. There is no debate scientifically about when a new human being comes into existence.
So once again I'll suggest that for Christians who have the benefit of Scripture and knowledge of an omniscient, omnipotent, immutable God, the question of whether or not abortion is immoral ought to be an easy one.
1. All humans are created in the image of God and possess inherent moral worth and value.
2. One human killing another human being without just cause is immoral and wrong.
3. Human beings come into existence at fertilization.
4. Abortion is the killing of a human being.
5. There can never be a just cause for an abortion committed for convenience sake (this accounts for 98.5% of all abortions).
6. All abortions committed for convenience sake are immoral and therefore wrong.
“The life cycle of mammals begins when a sperm enters an egg.” Okada et al., A role for the elongator complex in zygotic paternal genome demethylation, NATURE 463:554 (Jan. 28, 2010)
“Fertilization is the process by which male and female haploid gametes (sperm and egg) unite to produce a genetically distinct individual.”Signorelli et al., Kinases, phosphatases and proteases during sperm capacitation, CELL TISSUE RES. 349(3):765 (Mar. 20, 2012)
“Fertilization – the fusion of gametes to produce a new organism – is the culmination of a multitude of intricately regulated cellular processes.” Marcello et al., Fertilization, ADV. EXP. BIOL. 757:321 (2013)
“Human life begins at fertilization, the process during which a male gamete or sperm (spermatozoo developmentn) unites with a female gamete or oocyte (ovum) to form a single cell called a zygote. This highly specialized, totipotent cell marked the beginning of each of us as a unique individual.” “A zygote is the beginning of a new human being (i.e., an embryo).” Keith L. Moore, The Developing Human: Clinically Oriented Embryology, 7th edition. Philadelphia, PA: Saunders, 2003. pp. 16, 2.
“In that fraction of a second when the chromosomes form pairs, the sex of the new child will be determined, hereditary characteristics received from each parent will be set, and a new life will have begun.” Kaluger, G., and Kaluger, M., Human Development: The Span of Life, page 28-29, The C.V. Mosby Co., St. Louis, 1974
An embryology textbook describes how birth is just an event in the development of a baby, not the beginning of his/her life:
“It should always be remembered that many organs are still not completely developed by full-term and birth should be regarded only as an incident in the whole developmental process.” F Beck Human Embryology, Blackwell Scientific Publications, 1985 page vi
“It is the penetration of the ovum by a sperm and the resulting mingling of nuclear material each brings to the union that constitutes the initiation of the life of a new individual.” Clark Edward and Corliss Patten’s Human Embryology, McGraw – Hill Inc., 30
“Although it is customary to divide human development into prenatal and postnatal periods, it is important to realize that birth is merely a dramatic event during development resulting in a change in environment.” The Developing Human: Clinically Oriented Embryology fifth edition, Moore and Persaud, 1993, Saunders Company, page 1
“
The zygote and early embryo are living human organisms.” Keith L. Moore & T.V.N. Persaud Before We Are Born – Essentials of Embryology and Birth Defects (W.B. Saunders Company, 1998. Fifth edition.) Page 500
“Thus a new cell is formed from the union of a male and a female gamete. [sperm and egg cells] The cell, referred to as the zygote, contains a new combination of genetic material, resulting in an individual different from either parent and from anyone else in the world.” Sally B Olds, et al., Obstetric Nursing (Menlo Park, California: Addison – Wesley publishing, 1980) P 136
“The term conception refers to the union of the male and female pronuclear elements of procreation from which a new living being develops. It is synonymous with the terms fecundation, impregnation, and fertilization … The zygote thus formed represents the beginning of a new life.” J.P. Greenhill and E.A. Freidman.
Biological Principles and Modern Practice of Obstetrics. Philadelphia: W.B. Saunders Publishers. 1974 Pages 17 and 23.
“[All] organisms, however large and complex they might be as full grown, begin life as a single cell. This is true for the human being, for instance, who begins life as a fertilized ovum.”Dr. Morris Krieger “The Human Reproductive System” p 88 (1969) Sterling Pub. Co
“The first cell of a new and unique human life begins existence at the moment of conception (fertilization) when one living sperm from the father joins with one living ovum from the mother. It is in this manner that human life passes from one generation to another. Given the appropriate environment and genetic composition, the single cell subsequently gives rise to trillions of specialized and integrated cells that compose the structures and functions of each individual human body. Every human being alive today and, as far as is known scientifically, every human being that ever existed, began his or her unique existence in this manner, i.e., as one cell. If this first cell or any subsequent configuration of cells perishes, the individual dies, ceasing to exist in matter as a living being. There are no known exceptions to this rule in the field of human biology.” James Bopp, ed., Human Life and Health Care Ethics, vol. 2 (Frederick, MD: University Publications of America, 1985)
The question of when human life begins has been answered in a variety of ways by different religious and philosophical traditions throughout the ages, leading many to conclude the question cannot be definitively answered. Yet what does science tell us about when life begins?[1] One of the basic insights of modern biology is that life is continuous, with living cells giving rise to new types of cells and, ultimately, to new individuals. Therefore, in considering the question of when a new human life begins, we must first address the more fundamental question of when a new cell, distinct from sperm and egg, comes into existence.
The scientific basis for distinguishing one cell type from another rests on two criteria: differences in what something is made of (its molecular composition) and differences in how the cell behaves. These two criteria are universally agreed upon and employed throughout the scientific enterprise. They are not “religious” beliefs or matters of personal opinion. They are objective, verifiable scientific criteria that determine precisely when a new cell type is formed.
Based on these criteria, the joining (or fusion) of sperm and egg clearly produces a new cell type, the zygote or one-cell embryo. Cell fusion is a well studied and very rapid event, occurring in less than a second. Because the zygote arises from the fusion of two different cells, it contains all the components of both sperm and egg, and therefore this new cell has a unique molecular composition that is distinct from either gamete. Thus the zygote that comes into existence at the moment of sperm-egg fusion meets the first scientific criterion for being a new cell type: its molecular make-up is clearly different from that of the cells that gave rise to it.
Subsequent to sperm-egg fusion, events rapidly occur in the zygote that do not normally occur in either sperm or egg. Within minutes, the zygote initiates a change in its internal state that will, over the next 30 minutes, block additional sperm from binding to the cell surface. Thus, the zygote acts immediately to oppose the function of the gametes from which it is derived; while the “goal” of both sperm and egg is to find each other and to fuse, the first act of the zygote is to prevent any further binding of sperm to the cell surface. Clearly, the zygote has entered into a new pattern of behavior, and therefore meets the second scientific criterion for being a new cell type.
What is the nature of the new cell that comes into existence upon sperm-egg fusion? Most importantly, is the zygote merely another human cell (like a liver cell or a skin cell) or is it something else? Just as science distinguishes between different types of cells, it also makes clear distinctions between cells and organisms. Both cells and organisms are alive, yet organisms exhibit unique characteristics that can reliably distinguish them from mere cells.[2]
An organism is defined as “(1) a complex structure of interdependent and subordinate elements whose relations and properties are largely determined by their function in the whole and (2) an individual constituted to carry on the activities of life by means of organs separate in function but mutually dependent: a living being.” (Merriam-Webster) This definition stresses the interaction of parts in the context of a coordinated whole as the distinguishing feature of an organism. Organisms are “living beings.” Therefore, another name for a human organism is a “human being”; an entity that is a complete human, rather than a part of a human.
Human beings can be distinguished from human cells using the same kind of criteria scientists use to distinguish different cell types. A human being (i.e., a human organism) is composed of human parts (cells, proteins, RNA, DNA), yet it is different from a mere collection of cells because it has the characteristic molecular composition and behavior of an organism: it acts in an interdependent and coordinated manner to “carry on the activities of life.”
Human embryos from the one-cell (zygote) stage forward show uniquely integrated, organismal behavior that is unlike the behavior of mere human cells. The zygote produces increasingly complex tissues, structures and organs that work together in a coordinated way. Importantly, the cells, tissues and organs produced during development do not somehow “generate” the embryo (as if there were some unseen, mysterious “manufacturer” directing this process), they are produced by the embryo as it directs its own development to more mature stages of human life. This organized, coordinated behavior of the embryo is the defining characteristic of a human organism.
In contrast to human embryos, human cells are alive and, under some circumstances, they can assemble into primitive tissues and structures. Yet under no circumstances do mere human cells produce the kind of coordinated interactions necessary for building a fully integrated human body. They do not produce tissues in a coherent manner and do not organize them so as to sustain the life of the entity as a whole. They produce tumors; i.e., parts of the human body in a chaotic, disorganized manner. They behave like cells, not like organisms.
The conclusion that human life begins at sperm-egg fusion is uncontested, objective, based on the universally accepted scientific method of distinguishing different cell types from each other and on ample scientific evidence (thousands of independent, peer-reviewed publications)."
Dr. Condic is Associate Professor of Neurobiology and Adjunct Professor of Pediatrics at the University of Utah School of Medicine. She is also Director of Human Embryology instruction for the Medical School and of Human Neuroanatomy for the Dental School.