How will the 144,000 Jewish men be commissioned during the tribulation?
During the tribulation, after the two witnesses preach to Israel in Jerusalem, the 144,000 young Jewish men will be sealed and commissioned to carry the gospel of the kingdom worldwide. They will be saved by the merit of the cross, but their message will be that the King is coming.
Les explains that God sends the two witnesses to the nation of Israel in the Jerusalem area at the very same opening, though Scripture does not name them, so he does not name them. From the preaching of those two witnesses at the beginning, the 144,000 young Jewish men are sealed and commissioned to go out and take the gospel of the kingdom around the world. Les notes the gospel of the kingdom is the good news that the King is coming; they are saved on the merit of the cross, but their message is that the King is coming. Later, after the white horse/Antichrist, the red horse that Les likes to think is the great Russian invasion from the north, and the resulting war, famine, disease, and pestilence, the two witnesses are put to death.