Rev 13:18, 21:17 | ESV | STEP | This calls for wisdom : let the one who has understanding calculate the number of the beast , for it is the number of a man , and his number is 666 .

Revelation of John 13:18

18 ^aThis calls for wisdom: let the one who has understanding calculate the number of the beast, for it is the number ^bof a man, and his number is 666. ^{▼▼Some manuscripts 616}

Revelation of John 21:17

17 He also measured its wall, 144 cubits ^{▼▼A cubit was about 18 inches or 45 centimeters} by ^ehuman measurement, which is also ^fan angel’s measurement.