You shall not murder.
The sum of this Commandment is, that we should not unjustly do violence to any one. In order, however, that God may the better restrain us from all injury of others, He propounds one particular form of it, from which men’s natural sense is abhorrent; for we all detest murder, so as to recoil from those whose hands are polluted with blood, as if they carried contagion with them.
We have here the laws of the second table, as they are commonly called, the last six of the ten commandments, comprehending our duty to ourselves and to one another, and constituting a comment upon the second great commandment, Thou shalt love thy neighbour as thyself. As religion towards God is an essential branch of universal righteousness, so righteousness towards men is an essential branch of true religion.
Commenting on Exodus 20:12-17
Thou shalt not kill. Not meaning any sort of creatures, for there are some to be killed for the food and nourishment of men, and others for their safety and preservation; but rational creatures, men, women, and children, any of the human species, of every age, sex, condition, or nation; no man has a right to take away his own life, or the life of...