The great red dragon
Rev 12:3 And there appeared another wonder in heaven; and behold a great red dragon, having seven heads and ten horns, and seven crowns upon his heads.
The second sign was a great red dragon, symbolic of satan, the devil. Seven heads, authority, intelligence, deceit, the king of liars. and ten horns, great power for evil.
Daniel spoke of ten horns, representing the ten nations of the revived Roman empire.
Dan 7:7 After this I saw in the night visions, and behold a fourth beast, dreadful and terrible, and strong exceedingly; and it had great iron teeth: it devoured and brake in pieces, and stamped the residue with the feet of it: and it was diverse from all the beasts that were before it; and it had ten horns.
Seven crowns upon his head, he claims to be royalty; the prince of Babylon, the god of this world's lost people, the ruler over the darkness and the fallen demonic angels.
Rev 12:4 And his tail drew the third part of the stars of heaven, and did cast them to the earth: and the dragon stood before the woman which was ready to be delivered, for to devour her child as soon as it was born.
A third part of the stars, the angels, fell with satan to the earth, joining him in his war against people; to tempt, to steal, kill and destroy, through dark powers and lies. They enter idols that are worshipped and encourage rebellion and sin.
Eph 2:2 Wherein in time past ye walked according to the course of this world, according to the prince of the power of the air, the spirit that now worketh in the children of disobedience:
Satan attempted to kill the newborn child, when Jesus was born.
Mat 2:13 And when they were departed, behold, the angel of the Lord appeareth to Joseph in a dream, saying, Arise, and take the young child and his mother, and flee into Egypt, and be thou there until I bring thee word: for Herod will seek the young child to destroy him.
Rev 12:5 And she brought forth a man child, who was to rule all nations with a rod of iron: and her child was caught up unto God, and to his throne.
The man child Jesus, was the third sign; he grew into a man, and went to the cross, arose and returned to the Father. He will come again to rule on the earth with an iron rod.
Rev 2:27 And he shall rule them with a rod of iron; as the vessels of a potter shall they be broken to shivers: even as I received of my Father.
Rev 19:15 And out of his mouth goeth a sharp sword, that with it he should smite the nations: and he shall rule them with a rod of iron: and he treadeth the winepress of the fierceness and wrath of Almighty God.
Rev 12:6 And the woman fled into the wilderness, where she hath a place prepared of God, that they should feed her there a thousand two hundred and threescore days.
One thousand two hundred and sixty days: This reference to a three and one-half year period connects these events with the final seven years of the Daniel 9 prophecy. The woman cannot be Mary, for this half of the final week of Daniel refers to Israel. The woman fled into the wilderness:
Mat 24:15 When ye therefore shall see the abomination of desolation, spoken of by Daniel the prophet, stand in the holy place, (whoso readeth, let him understand:)
Mat 24:16 Then let them which be in Judaea flee into the mountains:
Mat 24:17 Let him which is on the housetop not come down to take any thing out of his house:
Mat 24:18 Neither let him which is in the field return back to take his clothes.
Mat 24:19 And woe unto them that are with child, and to them that give suck in those days!
Mat 24:20 But pray ye that your flight be not in the winter, neither on the sabbath day:
Mat 24:21 For then shall be great tribulation, such as was not since the beginning of the world to this time, no, nor ever shall be.
Mat 24:22 And except those days should be shortened, there should no flesh be saved: but for the elect's sake those days shall be shortened.