Ezekiel 37 pictures that main harvest represented by the Feast of Tabernacle; being resurrected to physical life and judgment.
Remember that the early harvest is resurrected to spirit at the end of the sixth day of the Feast of Unleavened Bread, or at the end of the first six thousand years; but this harvest of Ezek 37 is resurrected to flesh, and we know that no resurrection to flesh takes place before the early resurrection to spirit and the millennial 1,000 year Sabbath are completed.
Ezekiel 37:1 The hand of the LORD was upon me, and carried me out in the spirit of the LORD, and set me down in the midst of the valley which was full of bones, 37:2 And caused me to pass by them round about: and, behold, there were very many in the open valley; and, lo, they were very dry [very ancient] .
37:3 And he said unto me, Son of man, can these bones live? And I answered, O Lord GOD, thou knowest.
37:4 Again he said unto me, Prophesy upon these bones, and say unto them, O ye dry bones, hear the word of the LORD.
Jesus Christ will resurrect the long dead to physical life.
37:5 Thus saith the Lord GOD unto these bones; Behold, I will cause breath to enter into you, and ye shall live: 37:6 And I will lay sinews upon you, and will bring up flesh upon you, and cover you with skin, and put breath in you, and ye shall live; and ye shall know that I am the LORD.
The dead bodies are restored
37:7 So I prophesied as I was commanded: and as I prophesied, there was a noise, and behold a shaking, and the bones came together, bone to his bone. 37:8 And when I beheld, lo, the sinews and the flesh came up upon them, and the skin covered them above: but there was no breath in them.
This is a process where physical bodies are created first, after which the breath of life or air is given to the bodies that they might breath and live.
37:9 Then said he unto me, Prophesy unto the wind, prophesy, son of man, and say to the wind, Thus saith the Lord GOD; Come from the four winds, O breath, and breathe upon these slain, that they may live.
37:10 So I prophesied as he commanded me, and the breath came into them, and they lived, and stood up upon their feet, an exceeding great army [host, multitude].
Here we are told that these are the dead of all Israel.
37:11 Then he said unto me, Son of man, these bones are the whole house of Israel: behold, they say, Our bones are dried, and our hope is lost: we are cut off for our parts.
God will resurrect all Israel who has ever lived and not yet been changed to spirit, to physical life and they shall dwell in the physical promised land
37:12 Therefore prophesy and say unto them, Thus saith the Lord GOD; Behold, O my people, I will open your graves, and cause you to come up out of your graves, and bring you into the land of Israel.
When people who in their last conscious instant knew they were dying often horribly, are brought back from the grave: They will KNOW the power and greatness of the Eternal God!!! They will KNOW that he is the Life-Giver and that he can be their salvation if only they will follow him!!!
They will know and will turn to him in sincere repentance to live by the whole Word of God and be brought into the spiritual Temple [Family] of God, and their teachers [The laborers of the already spiritually changed] will rejoice greatly as they bring the sheaves of the harvest of humanity into the family of God!!!
37:13 And ye shall know that I am the LORD, when I have opened your graves, O my people, and brought you up out of your graves, 37:14 And shall put my spirit in you, and ye shall live, and I shall place you in your own land: then shall ye know that I the LORD have spoken it, and performed it, saith the LORD.
While this prophecy is specific to Israel, we know that it also pertains to all humanity for during the Feast of Tabernacles of the fall main harvest, a bullock is sacrificed for each one of the seventy families [primary racial groups, Genesis 10 Table of Nations] of mankind.