Theologizing and Abortion
What is the church to say about abortion? There is no passage of Scripture that says, in so many words, “abortion is wrong.” It simply was not a pressing issue in the days of Moses or Paul. But by the use of good and necessary consequence we can arrive at the will of God on this matter:
1st Premise: It is a sin to murder another human being (e.g. Exodus 20:13).
2nd Premise: Children in the womb are human beings (e.g. Psalm 139:13-16).
Conclusion: It is a sin to murder children in the womb.
Clayton Williams. Good and Necessary Consequence in the Westminster Confession, Reformed Presbyterian Theological Journal, 1.2 (Spring 2015), 57-58