Why do you speak against abortion?
I don't think the Bible is silent about the personhood of the unborn. I think there are enough texts to infer that these little ones, before they are born and breathe, are regarded by God as creatures in his image. Therefore they are persons who, in our own country, ought to be protected by the Fourteenth Amendment which gives to all persons life, liberty, and protection.
So it is my conviction that the Bible not only teaches, but assumes throughout that little ones in the womb are people.
Secondly, I would add that science and the photographs that we have of the unborn take all of the relevant distinctions between the unborn and the born and remove them. Consider a one-month old baby and a preemie in the womb. There are no morally relevant differences between them for how they should be treated. Therefore, the fact that we protect the one with law and we don't protect the other with law is just appalling to me.
So biblically, and experientially and scientifically I find this issue to be huge, and I can't bring myself to lay it down as irrelevant or something we should be silent about.