Revelation 6:8

New American Standard Bible (NASB)
I looked, and behold, an [i]ashen horse; and he who sat on it had the name Death; and Hades was following with him. Authority was given to them over a fourth of the earth, to kill with sword and with famine and with [j]pestilence and by the wild beasts of the earth.

The Fifth Seal—Martyrs

Read Revelation 6:8 in other translations