Who says the 144,000 are Jews according to the flesh? Not Scripture
Think Scripture - All of IT and remember - there is only One Faith - One Gospel - One Body of Christ
The 144,000 are all the Jews who repent,
seen HERE...... Zechariah 13:8 And it shall come to pass, that in all the land, saith the Lord, two parts therein shall be cut off and die; but the third shall be left therein.
9 And I will bring the third part through the fire, and will refine them as silver is refined, and will try them as gold is tried: they shall call on my name, and I will hear them: I will say, It is my people: and they shall say, The Lord is my God.
And here.......Rev. 12:14 And to the woman were given two wings of a great eagle, that she might fly into the wilderness, into her place, where she is nourished for a time, and times, and half a time, from the face of the serpent. 15 And the serpent cast out of his mouth water as a flood after the woman, that he might cause her to be carried away of the flood. 16 And the earth helped the woman, and the earth opened her mouth, and swallowed up the flood which the dragon cast out of his mouth.
That is why they are seen with Jesus at his return, they are The Wheat. The Gentile Church ae the Barley. The Barley doesn't need to be CRUSHED in order to be sifted, Wheat dos have to be crushed first. Thus Rev. 14, is the Harvest Chapter. We see the Wheat with Jesus at his return, we have a FLASHBACK to the Barley (Rev. 14:14) Rapture of the Church which is pre-trib, and needs not to be crushed to be sifted. Lastly, we have the Grape Harvest of the Wicked in verses 17-20. The word tribulation comes from a Greek word that calls a machine that crushes the Wheat the TRIBULINE that is because Wheat has to be crushed before it can e sifted, that is why God calls Israel the Wheat. They have to go through the 70th-week tribulation before they will repent (they are thus CRUSHED, and then sifted).
For with the heart one believes unto righteousness, and with the mouth confession is made unto salvation.
11For the Scripture says, “Whoever believes on Him will not be put to shame.”
12For there is no distinction between Jew and Greek, for the same Lord over all is rich to all who call upon Him.
13For “whoever calls on the name of the Lord shall be saved.” Romans 10
And this is God’s plan: Both Gentiles and Jews who believe the Good News share equally in the riches inherited by God’s children. Both are part of the same body, and both enjoy the promise of blessings because they belong to Christ Jesus. Ephesians 3:6-7
For as the body is one and has many members,
but all the members of that one body, being many, are one body, so also is Christ. 13For by one Spirit we were all baptized into one body—
whether Jews or Greeks, whether slaves or free—
and have all been made to drink into one Spirit. 14For in fact the body is not one member but many. 1 Corinthians 12:12-14
Now reread Gal. 3 and think JUST TE OPPOSITE of what you know to think, that is what Paul was actually teaching the Galatians. They wanted to act like Jews because someone had taught them you have to observe God like the Jews in order to get to heaven, don't believe me, go reread it. He starts out, WHO HAS BEWITCHED YOU, that starting out in the Faith, you have now returned ut the Fesh (trying to earn your way to heaven via THE LAW) Then Paul goes into all the reasoning why the Law can not save us and only faith can save is. He reminds them that the original covenant was not the Law but was the Promise !! Then he asks, why was the Law given? And he explains, because of sin, but once Jesus (the Promise) come there is now no need of the Law, the Law was a schoolmaster to bring us unto the Promise, but once the Promised Messiah has come we no longer have need of the Law, because we are justified by faith alone.
So, when Paul says here is neither Jew nor Greek, Male nor Female, neither Slave nor Freeman, he's not saying that all In Christ are one per se (even though we are) he is making just the opposite point as you and others pull out of this chapter, he's chastising the Galatians for thinking they have to observe the LAWS like the Jews in order to make it to heaven (this is why he mentions them leaving the faith and living BY FLESH at the start of the chapter)
So, at the very end, he's not trying to say Jews and Gentiles are all one because of Faith, he's saying to the Galatians just the opposite, we are all the same via our FAITH, so stop tryi g to be like the Jews who serve the Law. Hes not saying the Jews and Gentiles are the same as called by God, we know that is not true, the Gentiles have a TIME allotted to them (the time of the Gentiles) and the Jews go through the 70th week after the Rapture, they are the Wheat, we are the Barley. So, while ot is true that we all come unto Christ the exact same way, we d0n;t do it at the same time per se. Some Jews come unto Christ and are ruptured with us, but most come unto Christ after the start of the 70th week (3-5 million).
The key that lets us know Paul is not saying that the Jews and Gentiles are all seen as the exact same entities are the mention of the Males and Females, none of us see that as Paul saying there are now no Male nor Females, thus he's also not saying there are no Jews nor Gentiles, he's saying that in God's eyes we DO NOT HAVE to serve the Law like Jews in order to make it to Heaven, thus Paul chastises them for thinking they have to become "Jews" in order to find favor with God.
So, the whole chapter you cite is not Paul tryi g to say there are now no Jews or Gentiles, he's simply telling these Gentile Galatians, HEY GUYS, stop trying to earn your way to heaven by serving the Law as the Jews do, go back unto what we taught you, lie by FAITH ALONE.