Hard to explain, but there is a vast difference between a pastor and a military commander. They serve different Lords. Yes, someone mentioned that Jesus told the disciples to get swords, but He also told Peter to put his sword in its sheath (John 18:11). During the centuries Christians have been persecuted and, when they did not fight back, the Church grew. Look at the growth of the Church in the Roman Empire, or in China today. But when they fought back, well, look at the wars in Europe, Protestant vs Catholic, did that help spread the Gospel? One must also keep in mind the difference between being attacked because of nationality, political affiliation... or for being a Christian!
You didn’t answer the question. Why should a pastor allow life to be taken without a fight with the idea in his head that a bad guy killing him so easily would bring him closer to God quicker?
I mean, the way you have put it, abortion is moral as it kills someone and sends them to God.
I think God expects us to protect life even if we are not military officers.