The sun
shemesh (sheh'-mesh)
the sun; by implication, the east; figuratively, a ray, i.e. (arch.) a notched battlement -- + east side(-ward), sun (rising), + west(-ward), window.
shall be turned
haphak (haw-fak')
to turn about or over; by implication, to change, overturn, return, pervert
into darkness
choshek (kho-shek')
the dark; hence (literally) darkness; figuratively, misery, destruction, death, ignorance, sorrow, wickedness -- dark(-ness), night, obscurity.
and the moon
yareach (yaw-ray'-akh)
the moon -- moon. Yrechow.
into blood
dam (dawm)
blood (as that which when shed causes death) of man or an animal; by analogy, the juice of the grape; figuratively (especially in the plural) bloodshed (i.e. drops of blood)
before
paniym (paw-neem')
the face (as the part that turns); used in a great variety of applications (literally and figuratively); also (with prepositional prefix) as a preposition (before, etc.)
the great
gadowl (gaw-dole')
great (in any sense); hence, older; also insolent
and the terrible
yare' (yaw-ray')
to fear; morally, to revere; caus. to frighten
day
yowm (yome)
a day (as the warm hours),
of the LORD
Yhovah (yeh-ho-vaw')
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.
come
bow' (bo)
to go or come (in a wide variety of applications)