If you contemplate the Incarnation in light of the sacredness of human life, it is revolutionary. The Savior of the world was conceived. We often say that Jesus came to earth as a baby. We tend to picture Jesus as a small baby, just born, lying in a manger. But even more startling is that He came as a zygote, grew into an embryo, then a fetus, then a full-sized baby.
I can think of no better reason to equate the value of life in the womb the same as life outside. God Himself came to earth, and He came as a zygote.1
Stand firm in Christ,
1. Fisher, Brian. Deliver Us from Abortion: Awakening the Church to End the Killing of America's Children. Page 86.