Why has God preserved the tribal bloodline of the 144,000 young Jewish men?
God providentially preserved the tribal bloodline of the 144,000 young Jewish men so He can identify 12,000 from each tribe by name, confirming their Jewish lineage. This enables them to proclaim the gospel of the kingdom, not grace, to the globe after the church is gone.
Les teaches that God has providentially kept at least this many young Jews fairly pure in their tribal bloodline so that He can say, 12,000 from the tribe of Reuben, 12,000 from Gad, 12,000 from Asher, and so on. After hundreds of years, there will still be that many young Jewish men whose tribal lineage is intact enough for God to identify their tribe. These are the 144,000 and nothing else—they are Jews. They will circumvent the globe with the preaching of the gospel, not of grace, because that has ended, the church is gone, and God is back where He left off with Israel in the early part of Acts. These young Jewish men will proclaim the coming of the King, the gospel of the kingdom, and all twelve tribes are represented.