(Chapter 12 is another parenthetical chapter. It zooms out and covers the longest span of time in the Bible, from the first earth age to the 7th trumpet.)
1: And a great sign was seen in heaven; A woman clothed with the sun, and the moon under her feet, and over her head a crown of 12 stars: (Represents mother Israel not the "church". It is the 12 Zodiacal signs, representing the Israel nation in embryo. See 'the stars also')
2: And she being with child cries out, travailing in birth (i.e. birth of a new age), and pained to be delivered (lit. tormented).
3: And there appeared another wonder in heaven; and behold, a great red dragon (= Satan)(= Satan), having seven heads and ten horns, and seven crowns, upon his heads. (Look across the abyss. This is the same as it will be in the end. These are "signs" of universality and earthly powers, i.e. political system-one world system, new world order. Satan uses the same power structure that he used in the first earth age.)
4: And his tail drags the third part of the stars of heaven (Refers to Satan's first rebellion and to those who followed him), and drags (see John 21:8) them to the earth (its because of him we are here. God had to destroy that world age and we had to be born innocent of woman, to prove whether we will love Him or follow Satan): and the dragon is standing before the woman which was ready to be delivered, in order to devour her child as soon as it was born. (This was in the garden of Eden. Eve was not talking to some snake, but to Satan himself. From Gen.3:15 till now Satan stands ready to devour the promised "seed".)
5: And she brought forth a man child (1st Advent, Christ, as in Luke 2:23), Who is about to rule all the nations with a rod of iron: (2nd advent. See 2:27) and her child was caught up to God, and to His throne. (the Ascension of Christ)
6: (Anticipatory, the flight being consequent on the war in heaven.) And the woman fled to the wilderness, where she has a place prepared of God, that they should feed her there a thousand two hundred and threescore days. (The earth protects us. By the reckoning of Dan, 1897 A.D. approx., then things began to happen, and Israel became a nation once again in 1948 fulfilling the parable of the fig tree)
7: (Now we start to zoom in on the time of this generation that we live in) And there came to be war in the heaven: Michael and his angels going forth to war with the dragon (Satan); and the dragon fought against his angels,
8: And he prevailed not, neither was their place found any more in heaven. (They were booted out. See 8:1)
9: And the great dragon was cast down, that old serpent, called the Devil and Satan, which deceives the whole world (EXCEPT those sealed by God with His truth); he was cast down into the earth, and his angels were cast down with him. (Just like the days of Noah)
10: (The central verse of Revelation) And I heard a great voice saying in heaven, "Now is come the salvation, and the power, and the kingdom of our God, and the power of His Christ: for the accuser (= Satan, see Job 1:6-11) of our brethren was cast down, which accuses them before our God day and night.
11: And they overcame him by the blood of the Lamb, and by the word of their testimony; and they loved not their lives to death. (Satan is death)
12: For this cause, all you heavens, and all you that dwell in them. Woe (third and most terrible of the three woes) to the earth and the sea! (= peoples of the world, see 17:15) for the devil is gone down to you, having great wrath (1st tribulation), knowing that he knows that he has but a short time." (= 5 months, see 9:5)
12:13-13:18. The Fourth Vision "On Earth".
E4 W 12:13-17. The effect as regards Israel
X 13:1-18. The effect as regards the earth.
13: And when the dragon saw that he was cast down to the earth, he persecuted the woman (= Eve & mother Israel & Mary) which brought forth the man child. (= God's elect & Christ)
14: And to the woman were given two wings of a great eagle (= the 2 witnesses & the LORD, see Deut. 32:11), that she may fly into the wilderness (= the world) to her place, where she was nourished for a time, and times, and a half time (3 1/2 years, see 11:2), from the face of the serpent.
15: And the serpent (Satan) cast out of his mouth water as a flood after the woman (i.e. flood of lies. See Dan.11:22), that he might cause her to be carried away of the flood. (of lies. e.g., the "rapture" theory.)
16: And the earth helped the woman, and the earth opened her mouth, and swallowed up the flood which the dragon (Satan's role at the end) cast down out of his mouth. (the earth protects us. See Isa. 59:13-21)
17: And the dragon was wroth with the woman (because they were sealed with the truth. See Isa.43:1-13), and went away to make war with the remnant of her seed, which kept the commandments of God, holding the testimony of Jesus Christ (God's Savior the Anointed One of God).