Regard the Mosaic endorsement of capital punishment. Can this be justified on New Covenant grounds? Yes, in two ways. First, in Romans 13:4, Paul speaks of our governmental leaders who do not “bear the sword in vain.” Obviously the sword is not used for correction but for execution, and Paul acknowledges this right. Paul does not bother to provide an extensive list of what crimes are rightly punishable by death, but the right itself is assumed. Also, there is the pre-Mosaic stipulation that murder is an attack on God’s image and, therefore, worthy of death (Gen. 9:6). Murder as a personal attack on God is a notion that is not confined to the Old Covenant alone; it remain a capital offense in every age.
Fred Zaspel