Revelation 3:8

3:8 I know thy works: behold, I have set before thee an open door, and no man can shut it: for thou hast a little strength, and hast kept my word, and hast not denied my name.

Revelation 6:4

6:4 And there went out another horse [that was] red: and [power] was given to him that sat thereon to take peace from the earth, and that they should kill one another: and there was given unto him a great sword.