"9 If anyone has an ear, let him hear. 10 If anyone is destined for captivity, to captivity he goes; if anyone kills with the sword, with the sword he must be killed. Here is the perseverance and the faith of the saints."
These verses follow our having been told that in the last days much of humanity will fall under the spell of the beast from the sea and worship it. The phrase in verse nine, "let anyone who has an ear let him hear," is common in the teachings of Jesus in the Gospels, and the two couplets that follow refer back to Jeremiah 15:2.