There are three major purposes of the seven-year Tribulation period.
1. To rid the world of evil men:
“Do not fret because of evildoers, nor be envious of the workers of iniquity. For they shall soon be cut down like the grass, and wither as the green herb” (Psalm 37:1-2).
The Son of Man will judge the nations:
“When the Son of Man comes in His glory, and all the holy angels with Him, then He will sit on the throne of His glory. All the nations will be gathered before Him, and He will separate them one from another, as a shepherd divides his sheep from the goats.
And He will set the sheep on His right hand, but the goats on the left. Then the King will say to those on His right hand, ‘Come, you blessed of My Father, inherit the kingdom prepared for you from the foundation of the world: for I was hungry and you gave Me food; I was thirsty and you gave Me drink; I was a stranger and you took Me in; I was naked and you clothed Me; I was sick and you visited Me; I was in prison and you came to Me.’
“Then the righteous will answer Him, saying, ‘Lord, when did we see You hungry and feed You, or thirsty and give You drink? When did we see You a stranger and take You in, or naked and clothe You? Or when did we see You sick, or in prison, and come to You?’ And the King will answer and say to them, ‘Assuredly, I say to you, inasmuch as you did it to one of the least of these My brethren, you did it to Me.’
“Then He will also say to those on the left hand, ‘Depart from Me, you cursed, into the everlasting fire prepared for the devil and his angels: for I was hungry and you gave Me no food; I was thirsty and you gave Me no drink; I was a stranger and you did not take Me in, naked and you did not clothe Me, sick and in prison and you did not visit Me.’
“Then they also will answer Him, saying, ‘Lord, when did we see You hungry or thirsty or a stranger or naked or sick or in prison, and did not minister to You?’ Then He will answer them, saying, ‘Assuredly, I say to you, inasmuch as you did not do it to one of the least of these, you did not do it to Me.’ And these will go away into everlasting punishment, but the righteous into eternal life.”
2. To bring Israel to her knees and repent and at long last accept her their Messiah:
“For I will be like a lion to Ephraim, and like a young lion to the house of Judah. I, even I, will tear them and go away; I will take them away, and no one shall rescue” (Hosea 5:14).
“Then I heard the man clothed in linen, who was above the waters of the river, when he held up his right hand and his left hand to heaven, and swore by Him who lives forever, that it shall be for a time, times, and half a time; and when the power of the holy people has been completely shattered, all these things shall be finished” (Daniel 12:7).
Israel will, finally accept their Messiah:
“And it shall come to pass in all the land,” says the LORD, “That two-thirds in it shall be cut off and die. But one-third shall be left in it: I will bring the one-third through the fire, will refine them as silver is refined, and test them as gold is tested. They will call on My name, and I will answer them. I will say, ‘This is My people’; and each one will say, ‘The Lord is My God'” (Zechariah 13:8-9).
3.To bring about worldwide revival:
“With my soul I have desired You in the night, yes, by my spirit within me I will seek You early; for when Your judgments are in the earth, The inhabitants of the world will learn righteousness”(Isaiah 26:9).
The Sealed of Israel
“After these things I saw four angels standing at the four corners of the earth, holding the four winds of the earth, that the wind should not blow on the earth, on the sea, or on any tree. Then I saw another angel ascending from the east, having the seal of the living God. And he cried with a loud voice to the four angels to whom it was granted to harm the earth and the sea, saying, “Do not harm the earth, the sea, or the trees till we have sealed the servants of our God on their foreheads.”
And I heard the number of those who were sealed. One hundred and forty-four thousand of all the tribes of the children of Israel were sealed: of the tribe of Judah twelve thousand were sealed; of the tribe of Reuben twelve thousand were sealed; of the tribe of Gad twelve thousand were sealed; of the tribe of Asher twelve thousand were sealed; of the tribe of Naphtali twelve thousand were sealed; of the tribe of Manasseh twelve thousand were sealed; of the tribe of Simeon twelve thousand were sealed; of the tribe of Levi twelve thousand were sealed; of the tribe of Issachar twelve thousand were sealed; of the tribe of Zebulun twelve thousand were sealed; of the tribe of Joseph twelve thousand were sealed; of the tribe of Benjamin twelve thousand were sealed.”
A Multitude from the Great Tribulation
“After these things I looked, and behold, a great multitude which no one could number, of all nations, tribes, peoples, and tongues, standing before the throne and before the Lamb, clothed with white robes, with palm branches in their hands, and crying out with a loud voice, saying, “Salvation belongs to our God who sits on the throne, and to the Lamb!” All the angels stood around the throne and the elders and the four living creatures, and fell on their faces before the throne and worshiped God, saying:
“Amen! Blessing and glory and wisdom, Thanksgiving and honor and power and might, Be to our God forever and ever. Amen.”
Then one of the elders answered, saying to me, “Who are these arrayed in white robes, and where did they come from?”
And I said to him, “Sir, you know.” So he said to me, “These are the ones who come out of the great tribulation, and washed their robes and made them white in the blood of the Lamb.”