And it shall come to pass that every one that is left
yathar  (yaw-thar')
to jut over or exceed; by implication, to excel; (intransitively) to remain or be left; causatively, to leave, cause to abound, preserve
of all the nations
gowy  (go'-ee)
a foreign nation; hence, a Gentile; also (figuratively) a troop of animals, or a flight of locusts -- Gentile, heathen, nation, people.
which came
bow'  (bo)
to go or come (in a wide variety of applications)
against Jerusalem
Yruwshalaim  (yer-oo-shaw-lah'-im)
founded peaceful; Jerushalaim or Jerushalem, the capital city of Palestine -- Jerusalem.
shall even go up
`alah  (aw-law')
to ascend, intransitively (be high) or actively (mount); used in a great variety of senses, primary and secondary, literal and figurative (as follow)
day  (dahee)
enough (as noun or adverb), used chiefly with preposition in phrases
shaneh  (shaw-neh')
a year (as a revolution of time) -- + whole age, long, + old, year(-ly).
to year
shaneh  (shaw-neh')
a year (as a revolution of time) -- + whole age, long, + old, year(-ly).
to worship
shachah  (shaw-khaw')
to depress, i.e. prostrate (especially reflexive, in homage to royalty or God)
the King
melek  (meh'-lek)
a king -- king, royal.
the LORD
Yhovah  (yeh-ho-vaw')
(the) self-Existent or Eternal; Jehovah, Jewish national name of God -- Jehovah, the Lord.
of hosts
tsaba'  (tsaw-baw')
a mass of persons (or figuratively, things), especially reg. organized for war (an army); by implication, a campaign, literally or figuratively (specifically, hardship, worship)
and to keep
chagag  (khaw-gag')
to move in a circle, i.e. (specifically) to march in a sacred procession, to observe a festival; by implication, to be giddy
the feast
chag  (khag)
a festival, or a victim therefor -- (solemn) feast (day), sacrifice, solemnity.
of tabernacles
cukkah  (sook-kaw')
a hut or lair -- booth, cottage, covert, pavilion, tabernacle, tent.