It is a laudable personal choice to forgive someone who injured you. However it is your duty to stop that (often insane!) person from doing more harm to others. I am sure you are aware of the quote where a certain millstone is referenced. If there is a killer on the loose, just like it happened in Newtown, isn't it a prescribed duty of any capable adult to stop further harm? If a slave ship docks near your village, isn't it your duty to oppose enslavement of your children using all available avenues? If, after all other ways failed, you need guns to stop an attack, you'd better have them. (That choice could be made for you; pirates often come armed.) God may want you to be peaceful, but He does not want you to be extinct.
I am sure you are also aware of the parable of a religious man who, in a flood, drowned while waiting for God to save him because he refused help from mere humans who were sent by God? It perfectly applies here. The term "instrument of God" was not just invented yesterday. God probably would like1 such an instrument, a good person, to be at Sandy Hook, armed, and stop the killing in its tracks. This would have happened if the society was left to its natural way of development. But too many people today claim to know better than God what God wants, and they are tying the society in knots with their reasoning.
A good Christian, if he was wounded by Adam Lanza but found himself in position to shoot the killer, would do so; he would make sure that the body of Mr. Lanza is not a threat anymore. Only then he would be free to forgive the tortured soul of Mr. Lanza.
[1] This can be trivially derived from a very likely conjecture that God did not want those children to die.
> It is a laudable personal choice to forgive someone who
>injured you.
There is a difference between Christianity and American culture.
And when ye stand praying, forgive, if ye have ought against any: that your Father also which is in heaven may forgive you your trespasses. But if ye do not forgive, neither will your Father which is in heaven forgive your trespasses.
Mark 11:25-26
>However it is your duty to stop that (often insane!)
>person from doing more harm to others.
MATTHEW 5:39
39 But I say unto you, That ye resist not evil: but whosoever shall smite thee on thy right cheek, turn to him the other also.
MATTHEW 26:52
52 Then said Jesus unto him, Put up again thy sword into his place: for all they that take the sword shall perish with the sword.
>God may want you to be peaceful, but He does not want you
>to be extinct.
God wants us to obey:
LUKE 6:46
46 And why call ye me, Lord, Lord, and do not the things which I say?
>God probably would like1 such an instrument, a good
>person, to be at Sandy Hook, armed, and stop the killing
>in its tracks.
More likely, God wants us repenting of our sins, and worshiping and trusting Him, and believing Him in faith for casting away demons from insane people, so such things like Sandy Hook don’t happen.
>A good Christian, if he was wounded by Adam Lanza but
>found himself in position to shoot the killer, would do so;
Please give me Bible verses to make the case for this. Make sure you don’t contradict the ones I already gave.