An Excerpt from DesiringGod…
Where James says, “Resist the devil, and he will flee from you!” (James 4:7).
How do we do that? Here is how they did it according to Revelation 12:11: “They have conquered him by the blood of the Lamb and by the word of their testimony, for they loved not their lives even unto death.”
They embraced the triumph of Christ by his blood. They spoke that truth in faith. They did not fear death. And they triumphed.