HI thanks for the A2A. This question is directed towards the Jewish Messiah/Moshiach rather than the Christian Messiah. The Christian Messiah is said to return to earth in the modern era to establish the Kingdom of the Heavens. The Jewish Messiah is said to take up the heavenly government that brings certain elements to the earth, Yeshayahu 9:5
הכִּי־יֶ֣לֶד יֻלַּד־לָ֗נוּ בֵּן נִתַּן־לָ֔נוּ וַתְּהִ֥י הַמִּשְׂרָ֖ה עַל־שִׁכְמ֑וֹ וַיִּקְרָ֨א שְׁמ֜וֹ פֶּ֠לֶא יוֹעֵץ֙ אֵ֣ל גִּבּ֔וֹר אֲבִי־עַ֖ד שַׂר־שָׁלֽוֹם:
Both of the Judaism and Christian beliefs mean the same thing, the points of Yeshayahu/Isaiah tell of a heavenly governmental authority taken up by Moshiach that rules the entire earth. In the Christian belief this is referred to as: The Kingdom of the Heavens. Both beliefs mean GOVERNMENT headed by God not of human means. This is how the Messiah will restore or recover earth of a former and everlasting condition.
The next point is to recognize the timeline for the heavenly government to appear, this is a little tricky because there is so much confusion based on so many different religious beliefs. So, we need a modern occurrence that can pinpoint exact acknowledgement that satisfies everyone. There are two passages in the Torah/Holy Bible that does exactly that.
ירמיה 6:14
The Westminster Leningrad Codex
14 וַֽיְרַפְּא֞וּ אֶת־שֶׁ֤בֶר עַמִּי֙ עַל־נְקַלָּ֔ה לֵאמֹ֖ר שָׁל֣וֹם׀ שָׁל֑וֹם וְאֵ֖ין שָׁלֽוֹם׃
Jeremiah 6:14
Easy-to-Read Version
14 They should bandage the wounds my people have suffered,
but they treat their wounds like small scratches.
They say, ‘It’s all right, everything is all right.’
But it is not all right!
אגרת פולוס הראשונה אל-התסלו 5:1-3
Habrit Hakhadasha/Haderekh
ה אחים יקרים, איני צריך לכתוב לכם מתי כל זה יתרחש, 2 כי הלא יודעים אתם שאיש אינו יודע את המועד. יום ה' יבוא במפתיע – כגנב בלילה.
3 כאשר בני-האדם יחיו בשלווה ויחשבו שלא יקרה דבר, יירד עליהם האסון במפתיע, כיולדת שאינה יודעת מתי יתקפוה צירי הלידה, ואיש לא יוכל לברוח
1 Thessalonians 5:1-3
Easy-to-Read Version
Be Ready for the Lord’s Coming
5 Now, brothers and sisters, we don’t need to write to you about times and dates. 2 You know very well that the day when the Lord comes again will be a surprise, like a thief who comes at night. 3 People will say, “We have peace and we are safe.” At that time destruction will come to them quickly, like the pains of a woman giving birth. And those people will not escape.
