Michael and his angels fought against the dragon;
and the dragon fought and his angels.
Revelation 12:7
"War always will rage between the two great sovereignties until one or other be crushed. Peace between good and evil is an impossibility; the very pretence of it would, in fact, be the triumph of the powers of darkness.
Michael will always fight;
his holy soul is vexed with sin,
and will not endure it.
Jesus will always be the dragon's foe, and that not in a quiet sense, but actively, vigorously, with full determination to exterminate evil.
All His servants, whether angels in heaven or messengers on earth, will and must fight; they are born to be warriors-at the cross they enter into covenant never to make truce with evil; they are a
warlike company, firm in defence and fierce in attack.
The dragon and his angels will not decline the affray; they are incessant in their onslaughts, sparing no weapon, fair or foul. We are foolish to expect to serve God without opposition
The servants of Satan partake much of the old dragon's energy, and are usually an active race. War rages all around, and to dream of peace is dangerous and futile. Glory be to God, we know the end of the war."
Charles Spurgeon