{20} And the serpent cast out of his mouth water as a flood after the woman, that he might cause her to be carried away of the flood.

(20) That is, he inflamed the Romans and the nations that in persecuting the Jewish people with cruel arms, they might at the same time invade the Church of Christ, now departed from Jerusalem and out of Judea. For it is a normal thing in scripture, that the raging tumults of the nations should be compared to waters.

People's New Testament

12:15 And the serpent cast out of his mouth water as a flood. He resorted to persecutions in order to drive the true Church off of the face of the earth.

Jamieson-Fausset-Brown Bible Commentary

15, 16. flood-Greek, "river" (compare Ex 2:3; Mt 2:20; and especially Ex 14:1-31). The flood, or river, is the stream of Germanic tribes which, pouring on Rome, threatened to destroy Christianity. But the earth helped the woman, by swallowing up the flood. The earth, as contradistinguished from water, is the world consolidated and civilized. The German masses were brought under the influence of Roman civilization and Christianity [Auberlen]. Perhaps it includes also, generally, the help given by earthly powers (those least likely, yet led by God's overruling providence to give help) to the Church against persecutions and also heresies, by which she has been at various times assailed.

Matthew Henry's Concise Commentary

12:12-17 The church and all her friends might well be called to praise God for deliverance from pagan persecution, though other troubles awaited her. The wilderness is a desolate place, and full of serpents and scorpions, uncomfortable and destitute of provisions; yet a place of safety, as well as where one might be alone. But being thus retired could not protect the woman. The flood of water is explained by many to mean the invasions of barbarians, by which the western empire was overwhelmed; for the heathen encouraged their attacks, in the hope of destroying Christianity. But ungodly men, for their worldly interests, protected the church amidst these tumults, and the overthrow of the empire did not help the cause of idolatry. Or, this may be meant of a flood of error, by which the church of God was in danger of being overwhelmed and carried away. The devil, defeated in his designs upon the church, turns his rage against persons and places. Being faithful to God and Christ, in doctrine, worship, and practice, exposes to the rage of Satan; and will do so till the last enemy shall be destroyed.

Matthew Henry's Whole Bible Commentary

Verses 12-17

We have here an account of this war, so happily finished in heaven, or in the church, as it was again renewed and carried on in the wilderness, the place to which the church had fled, and where she had been for some time secured by the special care of her God and Saviour. Observe,

I. The warning given of the distress and calamity that should fall upon the inhabitants of the world in general, through the wrath and rage of the devil. For, though his malice is chiefly bent against the servants of God, yet he is an enemy and hater of mankind as such; and, being defeated in his designs against the church, he is resolved to give all the disturbance he can to the world in general: Woe to the inhabitants of the earth, and the sea, v. 12. The rage of Satan grows so much the greater as he is limited both in place and time; when he was confined to the wilderness, and had but a short time to reign there, he comes with the greater wrath.

II. His second attempt upon the church now in the wilderness: He persecuted the woman who brought forth the man-child, v. 13. Observe, 1. The care that God had taken of his church. He had conveyed her as on eagles' wings, into a place of safety provided for her, where she was to continue for a certain space of time, couched in prophetic characters, taken from Dan. 7:25. 2. The continual malice of the dragon against the church. Her obscurity could not altogether protect her; the old subtle serpent, which at first lurked in paradise, now follows the church into the wilderness, and casts out a flood of water after her, to carry her away. This is thought to be meant of a flood of error and heresy, which was breathed by Arius, Nestorius, Pelagius, and many more, by which the church of God was in danger of being overwhelmed and carried away. The church of God is in more danger from heretics than from persecutors; and heresies are as certainly from the devil as open force and violence. 3. The seasonable help provided for the church in this dangerous juncture: The earth helped the woman, and opened her mouth, and swallowed up the flood, v. 16. Some think we are to understand the swarms of Goths and Vandals that invaded the Roman empire, and found work for the Arian rulers, who otherwise would have been as furious persecutors as the pagan had been, and had exercised great cruelties already; but God opened a breach of war, and the flood was in a manner swallowed up thereby, and the church enjoyed some respite. God often sends the sword to avenge the quarrel of his covenant; and, when men choose new gods, then there is danger of war in the gates; intestine broils and contentions often end in the invasions of a common enemy. 4. The devil, being thus defeated in his designs upon the universal church, now turns his rage against particular persons and places; his malice against the woman pushes him on to make war with the remnant of her seed. Some think hereby are meant the Albigenses, who were first by Dioclesian driven up into barren and mountainous places, and afterwards cruelly murdered by popish rage and power, for several generations; and for no other reason than because they kept the commandments of God and held the testimony of Jesus Christ. Their fidelity to God and Christ, in doctrine, worship, and practice, was that which exposed them to the rage of Satan and his instruments; and such fidelity will expose men still, less or more, to the end of the world, when the last enemy shall be destroyed.