'Dragon' in the Bible

Then another sign [of warning] was seen in heaven: behold, a great fiery red dragon (Satan) with seven heads and ten horns, and on his heads were seven royal crowns (diadems).

And his tail swept [across the sky] and dragged away a third of the stars of heaven and flung them to the earth. And the dragon stood in front of the woman who was about to give birth, so that when she gave birth he might devour her child.

And war broke out in heaven, Michael [the archangel] and his angels waging war with the dragon. The dragon and his angels fought,

And the great dragon was thrown down, the age-old serpent who is called the devil and Satan, he who continually deceives and seduces the entire inhabited world; he was thrown down to the earth, and his angels were thrown down with him.

And when the dragon saw that he was thrown down to the earth, he persecuted the woman who had given birth to the male Child.

But the earth helped the woman, and the earth opened its mouth and swallowed up the river which the dragon had hurled out of his mouth.

So the dragon was enraged with the woman, and he went off to wage war on the rest of her children (seed), those who keep and obey the commandments of God and have the testimony of Jesus [holding firmly to it and bearing witness to Him].

And the beast that I saw resembled a leopard, but his feet were like those of a bear, and his mouth was like that of a lion. And the dragon gave him his power and his throne and great authority.

They fell down and worshiped the dragon because he gave his authority to the beast; they also worshiped the beast, saying, “Who is like (as great as) the beast, and who is able to wage war against him?”

Then I saw another beast rising up out of the earth; he had two horns like a lamb and he spoke like a dragon.

And I saw three loathsome spirits like frogs, leaping from the mouth of the dragon (Satan) and from the mouth of the beast (Antichrist, dictator) and from the mouth of the false prophet;

And he overpowered and laid hold of the dragon, that old serpent [of primeval times], who is the devil and Satan, and bound him [securely] for a thousand years (a millennium);