I laughed at his first line
I don't know of anyone who follows Jesus' teachings who is dangerous. Just those who don't.
How about this, caused lots of damage and was done in the name of the church,
http://en.wikipedia.org/wiki/Spanish_Inquisition or any other "heritic" burned at the stake.
or these passages from the bible
In the cities of the nations the LORD your God is giving you as an inheritance, do not leave alive anything that breathes. Completely destroy them " the Hittites, Amorites, Canaanites, Perizzites, Hivites and Jebusites " as the LORD your God has commanded you.
" Deuteronomy 20:16-17
As a result, Joshua and his troops were able to crush the army of Amalek. Then the LORD instructed Moses, "Write this down as a permanent record, and announce it to Joshua: I will blot out every trace of Amalek from under heaven." Moses built an altar there and called it "The LORD Is My Banner." He said, "They have dared to raise their fist against the LORD's throne, so now the LORD will be at war with Amalek generation after generation. ---- Exodus 17:13-16 NLT
During this period, Joshua destroyed all the descendants of Anak, who lived in the hill country of Hebron, Debir, Anab, and the entire hill country of Judah and Israel. He killed them all and completely destroyed their towns. Not one was left in all the land of Israel, though some still remained in Gaza, Gath, and Ashdod. So Joshua took control of the entire land, just as the LORD had instructed Moses. He gave it to the people of Israel as their special possession, dividing the land among the tribes. So the land finally had rest from war. ---- Joshua 11:21-23 NLT
For he turned their rivers into blood, so no one could drink from the streams. He sent vast swarms of flies to consume them and hordes of frogs to ruin them. He gave their crops to caterpillars; their harvest was consumed by locusts. He destroyed their grapevines with hail and shattered their sycamores with sleet. He abandoned their cattle to the hail, their livestock to bolts of lightning. He loosed on them his fierce anger " all his fury, rage, and hostility. He dispatched against them a band of destroying angels. He turned his anger against them; he did not spare the Egyptians' lives but handed them over to the plague. He killed the oldest son in each Egyptian family, the flower of youth throughout the land of Egypt. But he led his own people like a flock of sheep, guiding them safely through the wilderness. He kept them safe so they were not afraid; but the sea closed in upon their enemies. He brought them to the border of his holy land, to this land of hills he had won for them. He drove out the nations before them; he gave them their inheritance by lot. He settled the tribes of Israel into their homes. ---- Psalms 78:44-55 NLT
Then the LORD said to me, "Even if Moses and Samuel stood before me pleading for these people, I wouldn't help them. Away with them! Get them out of my sight! And if they say to you, 'But where can we go?' tell them, 'This is what the LORD says: Those who are destined for death, to death; those who are destined for war, to war; those who are destined for famine, to famine; those who are destined for captivity, to captivity.' "I will send four kinds of destroyers against them," says the LORD. "I will send the sword to kill, the dogs to drag away, the vultures to devour, and the wild animals to finish up what is left. Because of the wicked things Manasseh son of Hezekiah, king of Judah, did in Jerusalem, I will make my people an object of horror to all the kingdoms of the earth.---- Jeremiah 15:1-4
So Joshua conquered the entire region " the hill country, the Negev, the land of Goshen, the western foothills, the Jordan Valley, and the mountains and lowlands of Israel. The Israelite territory now extended all the way from Mount Halak, which leads up to Seir, to Baal-gad at the foot of Mount Hermon in the valley of Lebanon. Joshua killed all the kings of those territories, waging war for a long time to accomplish this. No one in this region made peace with the Israelites except the Hivites of Gibeon. All the others were defeated. For the LORD hardened their hearts and caused them to fight the Israelites instead of asking for peace. So they were completely and mercilessly destroyed, as the LORD had commanded Moses. ----Joshua 11:16-20 NLT
The Canaanite king of Arad, who lived in the Negev, heard that the Israelites were approaching on the road to Atharim. So he attacked the Israelites and took some of them as prisoners. Then the people of Israel made this vow to the LORD: "If you will help us conquer these people, we will completely destroy all their towns." The LORD heard their request and gave them victory over the Canaanites. The Israelites completely destroyed them and their towns, and the place has been called Hormah ever since. Numbers 21:1-3 NLT
Weep and moan, you evil shepherds! Roll in the dust, you leaders of the flock! The time of your slaughter has arrived; you will fall and shatter like fragile pottery. You will find no place to hide; there will be no way to escape. Listen to the frantic cries of the shepherds, to the leaders of the flock shouting in despair, for the LORD is spoiling their pastures. Peaceful meadows will be turned into a wasteland by the LORD's fierce anger. He has left his den like a lion seeking its prey, and their land will be made desolate by the sword of the enemy and the LORD's fierce anger. ---- Jeremiah 25:34-38 NLT
In that day those the LORD has slaughtered will fill the earth from one end to the other. No one will mourn for them or gather up their bodies to bury them. They will be scattered like dung on the ground.
---- Jeremiah 25:33 NLT
Then the LORD, the God of Israel, said to me, "Take from my hand this cup filled to the brim with my anger, and make all the nations to whom I send you drink from it. When they drink from it, they will stagger, crazed by the warfare I will send against them." ---- Jeremiah 25:15-16 NLT
And now the LORD Almighty says: Because you have not listened to me, I will gather together all the armies of the north under King Nebuchadnezzar of Babylon, whom I have appointed as my deputy. I will bring them all against this land and its people and against the other nations near you. I will completely destroy you and make you an object of horror and contempt and a ruin forever. I will take away your happy singing and laughter. The joyful voices of bridegrooms and brides will no longer be heard. Your businesses will fail, and all your homes will stand silent and dark. This entire land will become a desolate wasteland. ---- Jeremiah 25:8-11 NLT
My angel will go before you and bring you to the Amorites, Hittites, Perizzites, Canaanites, Hivites, and Jebusites; and I will wipe them out.---- Exodus 23:23 NAB
Then the LORD said to Joshua, "Do not be afraid or discouraged. Take the entire army and attack Ai, for I have given to you the king of Ai, his people, his city, and his land. You will destroy them as you destroyed Jericho and its king. But this time you may keep the captured goods and the cattle for yourselves. Set an ambush behind the city." So Joshua and the army of Israel set out to attack Ai. Joshua chose thirty thousand fighting men and sent them out at night with these orders: "Hide in ambush close behind the city and be ready for action. When our main army attacks, the men of Ai will come out to fight as they did before, and we will run away from them. We will let them chase us until they have all left the city. For they will say, 'The Israelites are running away from us as they did before.' Then you will jump up from your ambush and take possession of the city, for the LORD your God will give it to you. Set the city on fire, as the LORD has commanded. You have your orders." So they left that night and lay in ambush between Bethel and the west side of Ai. But Joshua remained among the people in the camp that night.
Early the next morning Joshua roused his men and started toward Ai, accompanied by the leaders of Israel. They camped on the north side of Ai, with a valley between them and the city. That night Joshua sent five thousand men to lie in ambush between Bethel and Ai, on the west side of the city. So they stationed the main army north of the city and the ambush west of the city. Joshua himself spent that night in the valley. When the king of Ai saw the Israelites across the valley, he and all his army hurriedly went out early the next morning and attacked the Israelites at a place overlooking the Jordan Valley. But he didn't realize there was an ambush behind the city. Joshua and the Israelite army fled toward the wilderness as though they were badly beaten, and all the men in the city were called out to chase after them. In this way, they were lured away from the city. There was not a man left in Ai or Bethel who did not chase after the Israelites, and the city was left wide open.
Then the LORD said to Joshua, "Point your spear toward Ai, for I will give you the city." Joshua did as he was commanded. As soon as Joshua gave the signal, the men in ambush jumped up and poured into the city. They quickly captured it and set it on fire. When the men of Ai looked behind them, smoke from the city was filling the sky, and they had nowhere to go. For the Israelites who had fled in the direction of the wilderness now turned on their pursuers. When Joshua and the other Israelites saw that the ambush had succeeded and that smoke was rising from the city, they turned and attacked the men of Ai. Then the Israelites who were inside the city came out and started killing the enemy from the rear. So the men of Ai were caught in a trap, and all of them died. Not a single person survived or escaped. Only the king of Ai was taken alive and brought to Joshua.
When the Israelite army finished killing all the men outside the city, they went back and finished off everyone inside. So the entire population of Ai was wiped out that day " twelve thousand in all. For Joshua kept holding out his spear until everyone who had lived in Ai was completely destroyed. Only the cattle and the treasures of the city were not destroyed, for the Israelites kept these for themselves, as the LORD had commanded Joshua. So Ai became a permanent mound of ruins, desolate to this very day. Joshua hung the king of Ai on a tree and left him there until evening. At sunset the Israelites took down the body and threw it in front of the city gate. They piled a great heap of stones over him that can still be seen today.---- Joshua 8:1-29 NLT
Finally, the water covered even the highest mountains on the earth, standing more than twenty-two feet above the highest peaks. All the living things on earth died " birds, domestic animals, wild animals, all kinds of small animals, and all the people. Everything died that breathed and lived on dry land. Every living thing on the earth was wiped out " people, animals both large and small, and birds. They were all destroyed, and only Noah was left alive, along with those who were with him in the boat. Genesis 7:19-23 NLT
Why are your clothes so red, as if you have been treading out grapes? "I have trodden the winepress alone; no one was there to help me. In my anger I have trampled my enemies as if they were grapes. In my fury I have trampled my foes. It is their blood that has stained my clothes. For the time has come for me to avenge my people, to ransom them from their oppressors. I looked, but no one came to help my people. I was amazed and appalled at what I saw. So I executed vengeance alone; unaided, I passed down judgment. I crushed the nations in my anger and made them stagger and fall to the ground."---- Isaiah 63:2-6 NLT
The men of Israel withdrew through the territory of the Benjaminites, putting to the sword the inhabitants of the city, the livestock, and all they chanced upon. Moreover they destroyed by fire all the cities they came upon.---- Judges 20:48 NAB
You must destroy all the nations the LORD your God hands over to you. Show them no mercy and do not worship their gods. If you do, they will trap you. Perhaps you will think to yourselves, 'How can we ever conquer these nations that are so much more powerful than we are?' But don't be afraid of them! Just remember what the LORD your God did to Pharaoh and to all the land of Egypt. Remember the great terrors the LORD your God sent against them. You saw it all with your own eyes! And remember the miraculous signs and wonders, and the amazing power he used when he brought you out of Egypt. The LORD your God will use this same power against the people you fear. And then the LORD your God will send hornets to drive out the few survivors still hiding from you! "No, do not be afraid of those nations, for the LORD your God is among you, and he is a great and awesome God. The LORD your God will drive those nations out ahead of you little by little. You will not clear them away all at once, for if you did, the wild animals would multiply too quickly for you. But the LORD your God will hand them over to you. He will throw them into complete confusion until they are destroyed. He will put their kings in your power, and you will erase their names from the face of the earth. No one will be able to stand against you, and you will destroy them all. ---- Deuteronomy 7:16-24 NLT
When the LORD your God brings you into the land you are about to enter and occupy, he will clear away many nations ahead of you: the Hittites, Girgashites, Amorites, Canaanites, Perizzites, Hivites, and Jebusites. These seven nations are all more powerful than you. When the LORD your God hands these nations over to you and you conquer them, you must completely destroy them. Make no treaties with them and show them no mercy. Do not intermarry with them, and don't let your daughters and sons marry their sons and daughters. They will lead your young people away from me to worship other gods. Then the anger of the LORD will burn against you, and he will destroy you. ---- Deuteronomy 7:1-4 NLT