NET

20 The sun will be changed to darkness and the moon to blood before the great and glorious day of the Lord comes.

Darby

20 the sun shall be changed to darkness and the moon to blood, before the great and gloriously appearing^D7714 day of [the] Lord^D7715 come.

Darby Bible Notes

appearing - Though used for 'illustrious,' 'glorious,' the Greek word has in it the sense of 'manifestation, appearing, displaying itself.' see Titus 2.11,13. Lord - 'Jehovah;' so ver 39.

KJV

20 The sun shall be turned into darkness, and the moon into blood, before that great and notable day of the Lord come:

Strong's

20 The sun^G2246 shall be turned^G3344 into^G1519 darkness^G4655, and^G2532 the moon^G4582 into^G1519 blood^G129, before^{G2228 G4250} that great^G3173 and^G2532 notable^G2016 day^G2250 of the Lord^G2962 come^G2064: