The apostle John received an exciting prophetic vision. In it, angels are told to hold back the destructive winds of the great tribulation until the final sealing of a group of slaves. (Rev. 7:1-3) That group is made up of 144,000 who will rule with Jesus in heaven. (Luke 12:32; Rev. 7:4) Then John mentions another group, so vast that he exclaims: “Look!”​—an expression that may indicate his surprise at seeing something unexpected. What does John see? “A great crowd, which no man was able to number, out of all nations and tribes and peoples and tongues, standing before the throne and before the Lamb.” (Rev. 7:9-14) Imagine how happy John must have been to learn about myriads of people practicing true worship in the future! That vision no doubt strengthened John’s faith. How much more should it strengthen our faith, since we live in the time of the fulfillment of the vision! We have seen the gathering of millions whose hope is to survive the great tribulation and live forever on earth. w19.09 26 ¶2-3