You should not let a sorceress live. (Exodus 22:17)
Suppose there are prophets among you, or those who have dreams about the future, and they promise you signs or miracles, and the predicted signs or miracles take place. If the prophets then say, 'Come, let us worship the gods of foreign nations,' do not listen to them. The LORD your God is testing you to see if you love him with all your heart and soul. Serve only the LORD your God and fear him alone. Obey his commands, listen to his voice, and cling to him. The false prophets or dreamers who try to lead you astray must be put to death, for they encourage rebellion against the LORD your God, who brought you out of slavery in the land of Egypt. Since they try to keep you from following the LORD your God, you must execute them to remove the evil from among you.(Deuteronomy 13:1-5
Just a few to get you started @SECats I've got plenty more.
So you're quoting the Old Testament? To the Jews?
I'm pretty certain that there aren't Christians high jacking planes, strapping bombs to themselves and beheading Muslims in a far away land.