Analysis of information sources in references of the Wikipedia article "Four Horsemen of the Apocalypse" in English language version.
The sword, famine, and pestilence are the traditional list of the three plagues of God's wrath, which we find in Ezechiel 6; and in Ezekiel 14 we read of God's judgments upon Jerusalem in the forms of the sword, famine, the noisome beast, and pestilence, together with the promise that a remnant shall be spared – another important theme in the Apocalypse.
...and sees a white horse appear, with a rider holding a bow (representing, probably, Pestilence).
At the opening of four seals, four horses appear. Their colour is white, black, red, and pale/sallow (chloros, piebald). They signify conquest, slaughter, dearth and death. The vision is taken from Zechariah 6:1–8.
At the opening of four seals, four horses appear. Their colour is white, black, red, and pale/sallow (chloros, piebald). They signify conquest, slaughter, dearth and death. The vision is taken from Zechariah 6:1–8.
...and sees a white horse appear, with a rider holding a bow (representing, probably, Pestilence).