Genesis 9:6 Whoso sheddeth man's blood, by man shall his blood be shed: for in the image of God made he man.
Exodus 21:12 He that smiteth a man, so that he die, shall be surely 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.
Numbers 35:16 And if he smite him with an instrument of iron, so that he die, he is a murderer: the murderer shall surely be put to death.
Numbers 35:17 And if he smite him with throwing a stone, wherewith he may die, and he die, he is a murderer: the murderer shall surely be put to death.
Numbers 35:18 Or if he smite him with an hand weapon of wood, wherewith he may die, and he die, he is a murderer: the murderer shall surely be put to death.
Numbers 35:21 Or in enmity smite him with his hand, that he die: he that smote him shall surely be put to death; for he is a murderer: the revenger of blood shall slay the murderer, when he meeteth him.
Numbers 35:30 Whoso killeth any person, the murderer shall be put to death by the mouth of witnesses: but one witness shall not testify against any person to cause him to die.
Failure to Control Known Dangerous Animal who Kills
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.
Battery of Parents
Exodus 21:15 And he that smiteth his father, or his mother, shall be surely put to death.
Cursing of Parents
Exodus 21:17 And he that curseth his father, or his mother, shall surely be put to death.
Leviticus 20:9 For every one that curseth his father or his mother shall be surely put to death: he hath cursed his father or his mother; his blood shall be upon him.
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 22:19 Whosoever lieth with a beast shall surely be put to death.
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.
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.
- Homosexual Acts
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.
That doesn't even include the list of "first table" or religion-related crimes, such as witchcraft (Leviticus 20:27), blasphemy (Leviticus 24:16), sabbath-breaking (Exodus 31:14-15 and 35:2), and so on. I don't omit them to hide them, but simply to note that even if one limited the modern state to enforcing "second table" crimes, there is abundant guidance in Scripture that the state ought to punish serious external violations of the 5th, 6th, and 7th commandments with death.
Oh, and for my brethren who think that we should just ignore the Old Testament's teaching regarding the state, Paul himself reaffirms the power of the state to take life:
Romans 13:1-7He bears the sword to execute wrath - not using the flat of the blade to spank, but the edge of the blade to kill. That's the state's mandate as God's minister, according to both the Old and New Testaments. Not all nations faithfully obey this mandate - and we should obey even if our state does not have the death penalty for the crimes that Scripture identifies, for conscience sake.
Let every soul be subject unto the higher powers. For there is no power but of God: the powers that be are ordained of God. Whosoever therefore resisteth the power, resisteth the ordinance of God: and they that resist shall receive to themselves damnation. For rulers are not a terror to good works, but to the evil. Wilt thou then not be afraid of the power? do that which is good, and thou shalt have praise of the same: For he is the minister of God to thee for good. But if thou do that which is evil, be afraid; for he beareth not the sword in vain: for he is the minister of God, a revenger to execute wrath upon him that doeth evil. Wherefore ye must needs be subject, not only for wrath, but also for conscience sake. For for this cause pay ye tribute also: for they are God's ministers, attending continually upon this very thing. Render therefore to all their dues: tribute to whom tribute is due; custom to whom custom; fear to whom fear; honour to whom honour.