Revelation 7:1-17 

After this I saw four angels standing on the four corners of the earth , holding the four winds of the earth , to not blow on the earth, neither the sea, nor on any tree . 2 And I saw another angel ascending from the rising sun , having the seal of the living God : and he cried with a loud voice to the four angels who had been given power to harm earth and sea , 3 Saying, hurt not the earth, neither the sea, nor the trees , till we have sealed in the foreheads of the servants of our God. 4 And I heard the number of them which were sealed an hundred and forty -four thousand sealed from every tribe of the children of Israel. 5 Of the tribe of Judah were sealed twelve thousand . Of the tribe of Reuben were sealed twelve thousand . Of the tribe of Gad twelve thousand sellados.6 Of the tribe of Aser were sealed twelve thousand . Of the tribe of Naphtali were sealed twelve thousand . Of the tribe of Manasseh twelve thousand sellados.7 Of the tribe of Simeon were sealed twelve thousand . Of the tribe of Levi were sealed twelve thousand . Of the tribe of Issachar were sealed twelve thousand . 8 Of the tribe of Zabulon were sealed twelve thousand . Of the tribe of Joseph were sealed twelve thousand . Of the tribe of Benjamin were sealed twelve thousand .

We can see God’s judgment stops between the sixth and seventh seal , while God seals the 144,000  Jews   that would lead to the ends of the earth. Here, we can safely say that these are the messengers of God, but if it is clear that God seals them as his servants. God brought a lull in the storm to extend mercy to Jews and Gentiles alike.

The winds speak of God’s judgment and these are specifically about the land, sea and vegetation. These angels who hold the winds are also playing the first four trumpets. We see the angel of the east with the seal of God. ” Seal ” means the possession and protection. Just as Christians are sealed with the Holy Spirit ( Eph 1:13-14 ) This stamp is printed instantly when the sinner trusts in Jesus Christ and that we are assured of eternal life and the inheritance of heaven.

Jesus also tells us (Mt 24:31 ) that God’s angels would have a party to gather His elect . We also see that with Wind county are county Fire 14.18 . Water and 16:5 .  Looks to be that these angels are the ministers to oversee all activities of nature.     four county
Sealed servants are 12,000 from each of the twelve tribes of Israel . It may be that these Jews are God’s missionaries to preach during the first three and a half years of the tribulation.

As you will find missing from the list the tribe of Dan but instead occupies the tribe of Manasseh . It might be the idolatry that led Israel Dan Judges 18:30 , 1 Kings 12:28-30 , and therefore , God promised to clear the name idolatry , Deuteronomy 29:18-21 .

Revelation 7:9-17

The crowd dressed in white robes

9 After this I looked, and behold, a great multitude which no one could count , from every nation, tribe, people and language, standing before the throne and before the Lamb, clothed with white robes, and palms in hands , 10 and crying with a loud voice , saying, salvation to our God who sits on the throne and to the Lamb. 11 And all the angels stood around the throne and around the elders and the four beasts, and fell on their faces before the throne and worshiped God, 12 saying, Amen . Blessing and glory and wisdom and thanksgiving and honor and power and might, be unto our God for ever and ever . Amen . 13 Then one of the elders answered , saying unto me , These that are clothed in white robes, who are they , and where did they come ? 14 And I said , Lord, thou knowest. And he said to me, These are they which came out of great tribulation , and have washed their robes and made ​​them white in the blood of the Lamb. 15 Therefore are they before the throne of God , and serve him day and night in his temple: and he that sitteth on the throne shall dwell among them. 16 They shall not hunger nor thirst , and the sun will not beat upon them, nor any heat ; 17 For the Lamb which is in the midst of the throne shall feed them, and shall lead them unto living fountains of waters : and God shall wipe away all tears from their eyes .

Jews are numbered but the gentile crowd can not be told the number by the many who they are . These are the gentiles who have received Jesus as their king and savior. Note that in verse 14 tells us very clearly that these are the ones  have left (not left ) from the great tribulation of the Apocalypse.  Now, these are standing before the heavenly throne , praising God and the Lamb. His “palms” parties suggest the tabernacles of the  OT ( Lev23 :40 -43) are all dressed in white , which means their justified by  the Lamb.
In verses 15-17 we see all they have endured on earth. Went hungry , thirsty, and much suffering,  it is more than likely that they all went through the terrible shortage of food and water, unbearable heat and cold to freezing , as never before had felt on earth. Also suffered severe trials and so they see that God is rinsed every tear from their eyes .