I'm not so sure that's entirely true. Isn't there something about "quickening" in there? I thought there was.
From the standpoint of the modern scientific understanding of life processes, I don't see how there can be any question that the life of an individual human, or sea snail, for that matter, begins at conception.
Nothing about quicken/-ed/-ing in my Bible relative to conception and gestation.
Ps. 139:16 Thine eyes did see my substance, yet being unperfect; and in thy book all my members were written, which in continuance were fashioned, when as yet there was none of them.
Is this not clear? This is carried into effect when two haploid cells, sperm (called exactly that in the Greek) and egg combine to form the zygote, with the person's construction dictated by the materials of the first coded cell.
Mt. 1:18 Now the birth of Jesus Christ was on this wise: When as his mother Mary was espoused to Joseph, before they came together, she was found with child of the Holy Ghost.
Lk. 1:35 And the angel answered and said unto her, The Holy Ghost shall come upon thee, and the power of the Highest shall overshadow thee: therefore also that holy thing which shall be born of thee shall be called the Son of God.
Cell differentiation takes place pretty quickly after fertilization.
Would the Bible lie about that which "modern" science shows unquestionable? I think not, and am quite sure from the doctrinal standpoint.