Every Christian must be pro-death penalty. The Bible is not ambiguous on this point. God has given the civil magistrate the sword to punish evildoers (Romans 13:4).

But should all Christians be pro-public execution?

Adam Terrell makes a compelling case that public stoning was not just God’s design for ancient Israel, but God’s design for capital punishment in all times and all places.

Our modern sensibilities may chafe at God’s law on this matter. We may think it’s brutal or barbaric. This is because we think we are wiser than God.

His Law is not only good.
His law is effective.

Public execution, swiftly carried out, would drastically reduce capital offense crimes.
Fear is a truly effective deterrent. I would argue that death by a public firing squad wherein the accuser and witnesses partake in the firing, could be a modern equivalent.