And I looked, and, lo, a Lamb stood on the mount Sion, and with him an hundred forty and four thousand, having his Father's name written in their foreheads. Revelation 14:1
In this world their minds were consecrated to God; they served Him with the intellect and with the heart; and now He can place His name "in their foreheads." "And they shall reign for ever and ever" (Revelation 22:5). They do not go in and out as those who beg a place. They are of that number to whom Christ says, "Come, ye blessed of My Father, inherit the kingdom prepared for you from the foundation of the world." He welcomes them as His children, saying, "Enter thou into the joy of thy Lord" (Matthew 25:34, 21).
These are they which follow the Lamb withersoever He goeth. These were redeemed from among men, being the first fruits unto God and to the Lamb" (Revelation 14:4). The vision of the prophet pictures them as standing on Mount Zion, girt for holy service, clothed in white lined, which is the righteousness of the saints. But all who follow the Lamb in heaven must first have followed Him on earth, not fretfully or capriciously, but in trustful, loving, willing obedience, as the flock follows the shepherd.
I heard the voice of harpers harping with their harps: and they sung as it were a new song before the throne:...and no man could learn that song but the hundred and forty and four thousand, which were redeemed from the earth....In their mouth was found no guile: for they are without fault before the throne of God" (Verse 2-5). (The Acts of the Apostles, 590, 591)
Reflection: The 144,000 will pass through the great time of trouble, a time of trouble such never was since there was a nation; they have stood without an intercessor during the time of the seven last plagues.