Here's just a few from the book of Matthew:
Those who bear bad fruit will be cut down and burned "with unquenchable fire." 3:10, 12
Jesus says that most people will go to hell. 7:13-14
Those who fail to bear "good fruit" will be "hewn down, and cast into the fire." 7:19
"The children of the kingdom [the Jews] shall be cast out into outer darkness: there shall be weeping and gnashing of teeth." 8:12
Jesus tells his disciples to keep away from the Gentiles and Samaritans, and go only to the Israelites. 10:5-6
Cities that neither "receive" the disciples nor "hear" their words will be destroyed by God. It will be worse for them than for Sodom and Gomorrah. And you know what God supposedly did to those poor folks (see Gen 19:24). 10:14-15
Families will be torn apart because of Jesus (this is one of the few "prophecies" in the Bible that has actually come true). "Brother shall deliver up the brother to death, and the father the child: and the children shall rise up against their parents, and cause them to be put to death." 10:21
"Whosoever shall deny me before men, him will I also deny before my Father which is in heaven." 10:33
Jesus says that he has come to destroy families by making family members hate each other. He has "come not to send peace, but a sword." 10:34-36
Jesus condemns entire cities to dreadful deaths and to the eternal torment of hell because they didn't care for his preaching. 11:20-24
"He that is not with me is against me." 12:30
"Whosoever speaketh against the Holy Ghost, it shall not be forgiven him." 12:31-32
Jesus often called people names. One of his favorites was to call his adversaries a "generation of vipers." 12:34
Jesus will send his angels to gather up "all that offend" and they "shall cast them into a furnace of fire: there shall be wailing and gnashing of teeth." 13:41-42, 50
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