Thou shalt not suffer a witch to live.
Witchcraft is a negative and counterfeit spirit which is not of the Holy Ghost.
It operates through the spirits or the souls of men and women who have sold themselves up to satan to perpetuate his evil devices against humanity on earth.
Witchcraft is an act of open rebellion against God and rejection to his legitimate authority .
Witchcraft operates in three arms, dimensions or levels;
Manipulation: is an act of influencing someone in a devious way to lead them astray in order to gain an advantage over them.
Control: is to have power or command over.
Domination: Is an act or instance of dominating.
Is to rule or sway; control, often arbitrary.
Acts 13:36 KJV
 For David, after he had served his own generation by the will of God, fell on sleep, and was laid unto his fathers, and saw corruption:
Saul yielded himself as an instrument of satan with a commitment to stop David at all cost. He even gave David a political wife in attempt to manipulate, control, dominate and stop him from becoming a king.
1 Samuel 18:21 KJV
 And Saul said, I will give him her, that she may be a snare to him, and that the hand of the Philistines may be against him. Wherefore Saul said to David, Thou shalt this day be my son in law in the one of the twain.