Luke 17:24

For just like the lightning flashes ¹  and lights up the sky from one side to the other, so will the Son of Man be in his day. ² 

For the Son of Man in his day will be like the lightning, which flashes and lights up the sky from one end to the other.

"For just like the lightning, when it flashes out of one part of the sky, shines to the other part of the sky, so will the Son of Man be in His day.

For when the Son of Man returns, you will know it beyond all doubt. It will be as evident as the lightning that flashes across the sky.

The arrival of the Son of Man is not something you go out to see. He simply comes. "You know how the whole sky lights up from a single flash of lightning? That's how it will be on the Day of the Son of Man.

For as in a thunderstorm the bright light is seen from one end of the sky to the other, so will the Son of man be when his time comes.

For as the lightning flashes and lights up the sky from one side to the other, so will the Son of Man be in his day.

"For as the lightning that flashes out of one part under heaven shines to the other part under heaven, so also the Son of Man will be in His day.

For just like the lightning flashes ¹  and lights up the sky from one side to the other, so will the Son of Man be in his day. ² 

¹ sn The Son of Man’s coming in power will be sudden and obvious like lightning. No one will need to point it out.

² tc Some very important mss (Ì⁷⁵ B D it sa) lack the words ἐν τῇ ἡμέρα αὐτοῦ (en th Jhmera autou, “in his day”), but the words are included in א A L W Θ Ψ Ë^1,13 Ï lat sy bo. On the one hand, the shorter reading is impressive because it has some of the best Alexandrian and Western witnesses in support; on the other hand, the expression ἐν τῇ ἡμέρα αὐτοῦ is unusual (found nowhere else in the NT), and may be considered the harder reading. A decision is difficult, but it is probably best to retain the words. NA²⁷ rightly has the words in brackets, expressing doubt as to their authenticity.