http://www.religious...org/execut7.htm
Though I appreciate you asking for my source rather than the source of the original claim lest we risk being impartial.
The reason many polls consider christians to be more supportive of the death penalty is because they consider anything that is not completely abolitionist to be supportive. The largest denomination of christians in the US supports the death penalty in the extreme situation where a violent criminal represents a continued and severe risk to others if he be allowed to survive even with non-lethal precautions being taken, but under no other circumstances. That's not really pro-death penalty. A good example is californians overwhelmingly support the death penalty (around 70% in 2010), but in the case of first degree murder only 40% of californians support the death penalty.
This is putting aside the fact that there are other faiths that practice the death penalty today as a punishment for non violent crimes.
What do you suppose Jesus would say about that situation? Gee, maybe he'd say "Well, this guy is
really bad. Yeah, everyone else is deserving of the mercy and forgiveness which I've commanded my human underlings to give
everyone, except for this guy!"
What does it really mean to say someone is a severe risk to others if he be allowed to survive even with non-lethal precautions being taken? Someone locked up in solitary for the rest of his life is a severe risk to others? To whom? The pope is more of a severe risk to others, if only because there's a small risk that he might run someone over on his pope-mobile.
So, you guys want evidence that Christians support more the death penalty more than others. Here:
http://www.deathpenaltyinfo.org/gallup-poll-who-supports-death-penalty Please look up "Religious Preference"
Unfortunately this poll does not ask people whether they are atheists, which I guarantee you would yield a number far smaller than those seen there.
I will admit that people who actually go to Church are
less in favor than those who call themselves Christians but rarely or never go to church.
That said, it is painfully clear to anyone who's even looked at a Bible from across the room that no person who believes in the divinity of Jesus or the Bible should support murder of any sort. It's hypocrisy, plain as day, and if your God exists he's really pissed off about it.
Now, war? Is Jesus in favor of war? Any sane Christian would say "No, of course not." But just look at these poll numbers:
http://www.gallup.com/poll/7888/support-war-modestly-higher-among-more-religious-americans.aspx
I'm calling on all you Christians to
be good Christians. Start by
being honest and admitting that there's a sick death-hunger among your ranks. Then
be courageous and stand up to your fellow Christians, and tell them that they are being extremely shitty Christians by supporting these things. Only then you can stand up with your head held high and say "I am not a hypocrite."