Whole Sort Of Genl Mish Mash
~ Accidentally kill someone? That could be considered murder, or how about as an avenger, like soldiers in war, that could be considered to be killing, murder, slaying. I don't see a difference.
Your handle on the OT law needs work here. The Ten Commandments outline God's standards for moral perfection. It's worth mentioning that Jesus regarding hating one's brother to be in violation of the moral law against murder. The Mosaic Law includes both moral and civil applications of God's standard. Murder is still sin, whether it is intentional or accidental, but, depending on the intent (or lack thereof) of the "slayer," the civil penalties vary. This idea, in part, serves as a foundation to Anglo-American criminal law. Murder = homicide. That is, in its simplest form, the killing of one human being by another. Accident, negligent homicide, and intential homicide with malice aforethought bear differing degrees of penalty. As in the Mosaic law, the criminal penalties are driven by the facts in the case (see the 47 verses in which "ratsach" appears in the OT). This does not make accidental homicide "not murder" or "not sin." It simply mitigates the criminal penalty for the act.
~ It is funny how humankind throughout the ages twisted and turned Biblical words to fit their own carnal beliefs.
Funny. I was just thinking the same thing.
~ Jesus said to love one's enemy, pray for those who abuse you, to turn the other cheek, yet certain christian folk think it is okay and justified for a human being to don a uniform, and out of a call to duty for a nation's perception of god - KILL his brother on a battlefield.
War is a necessary evil in a sinful world. Even Jesus marveled at the faith of the centurian (who was a professional soldier). Tyrants, despots ... the genocidal maniacs of this world ... require, at times, that good men take the lives of others. Including the lives of other good men who, out of compulsion, serve as the means to the tyrant's ends. This doesn't justify their actions (i.e., it doesn't "declare their actions just and good"). I think, in a jurisprudential sense, is excuses their actions. In other words, it doesn't change the Godly moral standard ... it changes the punitive Earthly standard.
Below is a summary of a word study on the semitic word "ratsach" you defined. As you can see, its use is limited, in context, to the definition you posted. A different word is used to denote killing in battle. Again, this does not mean that it is "not murder" or "not homicide" in the moral sense. It simply indicates that the Mosaic Law treated such killing differently than it treated involuntary and voluntary manslaughter and malicious murder.
I've included the Strong's number since that is the tool you are using. I'd also recommend you invest in a good Hebrew lexicon. Strong's is a good general tool to have, but the lexicon will give you far more information on the meanings of the Hebrew words than Strong's can deliver.
(1) to murder, slay, kill (a) (Qal) to murder, slay (1) premeditated , (2) accidental, (3) as avenger (4) slayer (intentional) (participle) (b) (Niphal) to be slain (c) (Piel) (1) to murder, assassinate, (2) murderer, assassin (participle)(subst), (d) (Pual) to be killed
Exd 20:13 Thou shalt not kill .
Num 35:6 And among the cities which ye shall give unto the Levites [there shall be] six cities for refuge, which ye shall appoint for the manslayer , that he may flee thither: and to them ye shall add forty and two cities.
Num 35:11 Then ye shall appoint you cities to be cities of refuge for you; that the slayer  may flee thither, which killeth any person at unawares.
Num 35:12 And they shall be unto you cities for refuge from the avenger; that the manslayer  die not, until he stand before the congregation in judgment.
Num 35:16 And if he smite him with an instrument of iron, so that he die, he [is] a murderer 07523 : the murderer  shall surely be put to death.
Num 35:17 And if he smite him with throwing a stone, wherewith he may die , and he die, he [is] a murderer 07523 : the murderer  shall surely be put to death.
Num 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.
Num 35:19 The revenger of blood himself shall slay the murderer  : when he meeteth him, he shall slay him.
Num 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 revengerof blood shall slay the murderer , when he meeteth him.
Num 35:25 And the congregation shall deliver the slayer  out of the hand of the revenger of blood, and the congregation shall restore him to the city of his refuge, whither he was fled: and he shall abide in it unto the death of the high priest, which was anointed with the holy oil.
Num 35:26 But if the slayer  shall at any time come without the border of the city of his refuge, whither he was fled;
Num 35:27 And the revenger of blood find him without the borders of the city of his refuge, and the revenger of blood kill  the slayer ; he shall not be guilty of blood:
Num 35:28 Because he should have remained in the city of his refuge until the death of the high priest: but after the death of the high priest the slayer shall return into the land of his possession.
Num 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.
Num 35:31 Moreover ye shall take no satisfaction for the life of a murderer , which [is] guilty of death: but he shall be surely put to death.
Deu 4:42 That the slayer  might flee thither, which should kill  his neighbour unawares, and hated him not in times past; and that fleeing unto one of these cities he might live:
Deu 5:17 Thou shalt not kill .
Deu 19:3 Thou shalt prepare thee a way, and divide the coasts of thy land, which the LORD thy God giveth thee to inherit, into three parts, that every slayer  may flee thither.
Deu 19:4 And this [is] the case of the slayer , which shall flee thither, that he may live: Whoso killeth his neighbour ignorantly, whom he hated not in time past;
Deu 19:6 Lest the avenger of the blood pursue the slayer , while his heart is hot, and overtake him, because the way is long, and slay him; whereas he [was] not worthy of death, inasmuch as he hated him not in time past.
Deu 22:26 But unto the damsel thou shalt do nothing; [there is] in the damsel no sin [worthy] of death: for as when a man riseth against his neighbour, and slayeth  him, even so [is] this matter:
Jos 20:3 That the slayer  that killeth [any] person unawares [and] unwittingly may flee thither: and they shall be your refuge from the avenger of blood.
Jos 20:5 And if the avenger of blood pursue after him, then they shall not deliver the slayer  up into his hand; because he smote his neighbour unwittingly, and hated him not beforetime.
Jos 20:6 And he shall dwell in that city, until he stand before the congregation for judgment, [and] until the death of the high priest that shall be in those days: then shall the slayer  return, and come unto his own city, and unto his own house, unto the city from whence he fled.
Jos 21:13 Thus they gave to the children of Aaron the priest Hebron with her suburbs, [to be] a city of refuge for the slayer ; and Libnah with her suburbs,