Warning: I Am Not an Authority on This

According to Phil Zuckerman:

Jesus unambiguously preached mercy and forgiveness. These are supposed to be cardinal virtues of the Christian faith. And yet Evangelicals are the most supportive of the death penalty, draconian sentencing, punitive punishment over rehabilitation, and the governmental use of torture. Jesus exhorted humans to be loving, peaceful, and non-violent. And yet Evangelicals are the group of Americans most supportive of easy-access weaponry, little-to-no regulation of handgun and semi-automatic gun ownership, not to mention the violent military invasion of various countries around the world.

On the other hand, if you bother to read the manual:

Then said he unto them, But now, he that hath a purse, let him take [it], and likewise [his] scrip: and he that hath no sword, let him sell his garment, and buy one.

and also:

Think not that I am come to send peace on earth: I came not to send peace, but a sword.

On the other hand, I am very much aware of the fact that it's easy for someone who doesn't belong to a religion to post idiotic things about it, so you might take the above with the proverbial grain of salt.