Focus on the Kingdom | Reasons why the 144,000 thousand are not the Great Crowd in Revelation @FocusontheKingdom | Uploaded May 2024 | Updated October 2024, 5 days ago.
It is easiest to understand the 144k as a remnant of Israel (spoken about by Paul in Rom 9-11) who will come to faith under the pressure of the Great Tribulation. And the “great crowd” (v. 9) Gentiles from all the other nations.

NOTE Some teach the 144k in Revelation 7 is the church by misusing James 1:1 and Galatians 6:16 because both references there are defined. James 1:1 adds “in the diaspora” when we know that biblically and historically that refers specifically to ethnic Jews only. And in Gal 6:16 Paul adds “of God” as opposed to “the Israel of the flesh” (1Cor 10:18).

For more see rfcogstudy.blogspot.com/2024/05/the-144-thousand-are-not-great-crowd.html