An unborn baby is a human.
Period.
Full stop.
So, when is it OK to kill an innocent human? This is the question that needs to be asked...
My personal view is that life begins at conception. This means no elective abortion ever. If a medical emergency occurs and a choice of saving the mother or the baby must be made, then that is a different question.
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"Just as you do not know how the spirit enters the bones in the womb of the pregnant woman , so you do not know the activity of God who makes all things."
Ecclesiastes 11:5 NASB
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"For You formed my inward parts;
You wove me in my mother’s womb.
I will give thanks to You, for I am fearfully and wonderfully made;
Wonderful are Your works,
And my soul knows it very well.
My frame was not hidden from You,
When I was made in secret,
And skillfully wrought in the depths of the earth;
Your eyes have seen my unformed substance;
And in Your book were all written
The days that were ordained for me,
When as yet there was not one of them. "
Psalm 139:13-16 NASB
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"Moreover, you took your sons and daughters whom you had borne to Me and sacrificed them to idols to be devoured. Were your harlotries so small a matter?"
Ezekiel 16:20 NASB (God Speaking)
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"Then the Lord spoke to Moses, saying, “You shall also say to the sons of Israel:
‘Any man from the sons of Israel or from the aliens sojourning in Israel who gives any of his offspring to Molech, shall surely be put to death; the people of the land shall stone him with stones. I will also set My face against that man and will cut him off from among his people, because he has given some of his offspring to Molech, so as to defile My sanctuary and to profane My holy name. If the people of the land, however, should ever disregard that man when he gives any of his offspring to Molech, so as not to put him to death, then I Myself will set My face against that man and against his family, and I will cut off from among their people both him and all those who play the harlot after him, by playing the harlot after Molech."
Leviticus 20:1-5 NASB