God is in charge, waiting for His people to challenge the rulers of the earth and take the steering wheel from them, ... the battle for the earth is currently going on.
Gary NorthThe fifth and by far the most important reason is that stoning is literally a means of crushing the murderer's head by means of a rock, which is symbolic of God. This is analogous to the crushing of the head of the serpent in Genesis 3:15. This symbolism testifies to the final victory of God over all the hosts of Satan. Stoning is therefore integral to the commandment against murder.
Gary North