Dragons in the Bible, Revelation
Revelation 12:3 Another mysterious sight appeared in the sky. There was a huge red dragon with seven heads and ten horns and a crown on each of his heads.
Revelation 12:4 With his tail he dragged a third of the stars out of the sky and threw them down to the earth. He stood in front of the woman, in order to eat her child as soon as it was born.
Revelation 12:7 Then war broke out in heaven. Michael and his angels fought against the dragon, who fought back with his angels.
Revelation 12:9 The huge dragon was thrown out - that ancient serpent, named the Devil, or Satan, that deceived the whole world. He was thrown down to earth, and all his angels with him.
Revelation 12:13 When the dragon realised that he had been thrown down to the earth, he began to pursue the woman who had given birth to the boy.
Revelation 12:16 But the earth helped the woman; it opened its mouth and swallowed the water that had come from the dragon's mouth.
Revelation 12:17-18 The dragon was furious with the woman and went off to fight against the rest of her descendants, all those who obey God's commandments and are faithful to the truth revealed by Jesus. And the dragon stood on the seashore.
Revelation 13:2 The beast looked like a leopard, with feet like a bear's feet and a mouth like a lion's mouth. The dragon gave the beast his own power, his throne, and his vast authority.
Revelation 13:4 Everyone worshipped the dragon because he had given his authority to the beast. They worshipped the beast also, saying, "Who is like the beast? Who can fight against it?"
Revelation 13:11 Then I saw another beast, which came up out of the earth. It had two horns like a lamb's horns, and it spoke like a dragon.
Revelation 16:13 Then I saw three unclean spirits that looked like frogs. They were coming out of the mouth of the dragon, the mouth of the beast, and the mouth of the false prophet.
Revelation 20:2 He seized the dragon, that ancient serpent - that is, the Devil, or Satan - and chained him up for a thousand years.
Revelation 20:1-3 (diff) And I saw an angel come down from heaven, having the key of the bottomless pit and and great chain in his hand. And he laid hold on the dragon, that old serpent, which is the Devil, and Satan, and bound him in a thousand years. And cast him into the bottomless pit, and shut him up, and set a seal upon him.
Holy Bible, New Revised Standard Version