Lightning is generally visible in the sky from one horizon to the other (Job 36:30; Psalm 97:4; Zechariah 9:14). When the Son of Man comes in glory, he will not come in secret but his coming will be visible to all (2 Thessalonians 1:7; Revelation 1:7; Revelation 19:11–16).1 There will be nothing secret or hidden about his return.2
27 For as the lightning comes from the east and shines as far as the west, so will be the coming of the Son of Man.