Scripture strongly suggest that the 144,000 is the remnant church that will be localized to Jerusalem, and ethnic to the location Israel, "the remnant of his heritage"
The woman in Revelation 12:6 represents the "Remnant Church" seen in Roman's chapter 11, they will be in Israel's wilderness during the 1260 day tribulation, as Jerusalem is in desolation
Below you see the future fulfilling of the gentiles and desolation in Jerusalem, armies from the worlds nations, from sea to sea
Below you see the Remnant Church being fed in the wilderness of Carmel, Bashan, Gilead, manna from heaven, as in the days of old in coming out of Egypt, the world watches in fear of the Lords power
Revelation 12:6KJV
6 And the woman fled into the wilderness, where she hath a place prepared of God, that they should feed her there a thousand two hundred and threescore days.
Micah 7:10-18KJV
10 Then she that is mine enemy shall see it, and shame shall cover her which said unto me, Where is the Lord thy God? mine eyes shall behold her: now shall she be trodden down as the mire of the streets.
11 In the day that thy walls are to be built, in that day shall the decree be far removed.
12 In that day also he shall come even to thee from Assyria, and from the fortified cities, and from the fortress even to the river, and from sea to sea, and from mountain to mountain.
13 Notwithstanding the land shall be desolate because of them that dwell therein, for the fruit of their doings.
14 Feed thy people with thy rod, the flock of thine heritage, which dwell solitarily in the wood, in the midst of Carmel: let them feed in Bashan and Gilead, as in the days of old.
15 According to the days of thy coming out of the land of Egypt will I shew unto him marvellous things.
16 The nations shall see and be confounded at all their might: they shall lay their hand upon their mouth, their ears shall be deaf.
17 They shall lick the dust like a serpent, they shall move out of their holes like worms of the earth: they shall be afraid of the Lord our God, and shall fear because of thee.
18 Who is a God like unto thee, that pardoneth iniquity, and passeth by the transgression of the remnant of his heritage? he retaineth not his anger for ever, because he delighteth in mercy.
Scripture has confirmed who the 144,000 is symbolic of = His Bride the Church
Wives, submit to your own husbands, as to the Lord.
23For the husband is head of the wife, as also Christ is head of the church; and He is the Savior of the body. 24Therefore, just as the church is subject to Christ, so let the wives be to their own husbands in everything.
25Husbands, love your wives, just as
Christ also loved the church and gave Himself for her,
26that He might sanctify and cleanse her with the washing of water by the word,
27that He might present her to Himself a glorious church, not having spot or wrinkle or any such thing, but that she should be holy and without blemish.
28So husbands ought to love their own wives as their own bodies; he who loves his wife loves himself.
29For no one ever hated his own flesh, but nourishes and cherishes it, just as the Lord
does the church.
30For we are members of His body, of His flesh and of His bones.
31“
For this reason a man shall leave his father and mother and be joined to his wife, and the two shall become one flesh.” 32This is a great mystery, but I speak concerning Christ and the church.
33Nevertheless let each one of you in particular so love his own wife as himself, and let the wife
see that she respects
her husband.
Coming to Him as to a living stone, rejected indeed by men, but chosen by God and precious,
5you also, as living stones, are being built up a spiritual house, a holy priesthood, to offer up spiritual sacrifices acceptable to God through Jesus Christ.
6Therefore it is also contained in the Scripture,
“Behold, I lay in Zion
A chief cornerstone, elect, precious,
And he who believes on Him will by no means be put to shame.”
Now I saw a new heaven and a new earth, for the first heaven and the first earth had passed away. Also there was no more sea. Then I, John, saw the holy city,
New Jerusalem, coming down out of heaven from God, prepared as a bride adorned for her husband.
Then one of the seven angels who had the seven bowls filled with the seven last plagues came to me and talked with me, saying, “
Come, I will show you the bride, the Lamb’s wife.” 10And he carried me away in the Spirit to a great and high mountain,
and showed me the great city, the holy Jerusalem, descending out of heaven from God, 11having the glory of God. Her light
was like a most precious stone, like a jasper stone, clear as crystal.
12Also she had a great and high wall with
twelve gates, and
twelve angels at the gates, and names written on them, which are
the names of
the twelve tribes of the children of Israel: 13three gates on the east, three gates on the north, three gates on the south, and three gates on the west.