God tell us "Though shalt not Kill". He did not put any stipulations on this saying, "Though Shalt not Kill unless..."
What about these? They are quotes from the Old Testiment, which is supposed to contain the word of God... he gives MANY stipulations on this saying:
Exodus 22:18 Thou shalt not suffer a witch to live.
Exodus 22:19 Whosoever lieth with a beast shall surely be put to death.
Exodus 22:20 He that sacrificeth unto [any] god, save unto the LORD only, he shall be utterly destroyed.
Exodus 21:12 He that smiteth a man, so that he die, shall be surely put to death.
Exodus 21:14 But if a man come presumptuously upon his neighbour, to slay him with guile; thou shalt take him from mine altar, that he may die.
Exodus 21:15 And he that smiteth his father, or his mother, shall be surely put to death.
Exodus 21:16 And he that stealeth a man, and selleth him, or if he be found in his hand, he shall surely be put to death.
Exodus 21:17 And he that curseth his father, or his mother, shall surely be put to death.
Exodus 21:23 And if [any] mischief follow, then thou shalt give life for life,
Exodus 21:24 Eye for eye, tooth for tooth, hand for hand, foot for foot,
Exodus 21:25 Burning for burning, wound for wound, stripe for stripe.
Exodus 21:29 But if the ox were wont to push with his horn in time past, and it hath been testified to his owner, and he hath not kept him in, but that he hath killed a man or a woman; the ox shall be stoned, and his owner also shall be put to death.
Leviticus 24:17 And he that killeth any man shall surely be put to death.
Leviticus 24:21 And he that killeth a beast, he shall restore it: and he that killeth a man, he shall be put to death.
Leviticus 20:10 And the man that committeth adultery with [another] man's wife, [even he] that committeth adultery with his neighbour's wife, the adulterer and the adulteress shall surely be put to death.
Leviticus 20:11 And the man that lieth with his father's wife hath uncovered his father's nakedness: both of them shall surely be put to death; their blood [shall be] upon them.
Leviticus 20:12 And if a man lie with his daughter in law, both of them shall surely be put to death: they have wrought confusion; their blood [shall be] upon them.
Leviticus 20:13 If a man also lie with mankind, as he lieth with a woman, both of them have committed an abomination: they shall surely be put to death; their blood [shall be] upon them.
Leviticus 20:14 And if a man take a wife and her mother, it [is] wickedness: they shall be burnt with fire, both he and they; that there be no wickedness among you.
Leviticus 20:15 And if a man lie with a beast, he shall surely be put to death: and ye shall slay the beast.
Leviticus 20:16 And if a woman approach unto any beast, and lie down thereto, thou shalt kill the woman, and the beast: they shall surely be put to death; their blood [shall be] upon them.
Deuteronomy 20:12 And if it will make no peace with thee, but will make war against thee, then thou shalt besiege it:
Deuteronomy 20:13 And when the LORD thy God hath delivered it into thine hands, thou shalt smite every male thereof with the edge of the sword.
Deuteronomy 22:22 If a man be found lying with a woman married to an husband, then they shall both of them die, [both] the man that lay with the woman, and the woman: so shalt thou put away evil from Israel.
Deuteronomy 22:23 If a damsel [that is] a virgin be betrothed unto an husband, and a man find her in the city, and lie with her;
Deuteronomy 22:24 Then ye shall bring them both out unto the gate of that city, and ye shall stone them with stones that they die; the damsel, because she cried not, [being] in the city; and the man, because he hath humbled his neighbour's wife: so thou shalt put away evil from among you.
Deuteronomy 22:25 But if a man find a betrothed damsel in the field, and the man force her, and lie with her: then the man only that lay with her shall die: