The Lord's Prayer can be easily seen as to its application on earth as it WILL BE in heaven from the Prophet Isaiah:
"For, behold, the LORD will come with fire, and with his chariots like a whirlwind, to render his anger with fury, and his rebuke with flames of fire.For by fire and by his sword will the LORD plead with all flesh: and the slain of the LORD shall be many. Isaiah 66:17 “Those who ‘consecrate’ and ‘purify’ themselves in a sacred garden with its idol in the center–feasting on pork and rats and other detestable meats-will come to a terrible end," says the LORD.. For I know their works and their thoughts: it shall come, that I will gather all nations and tongues; and they shall come, and see my glory. And I will set a sign among them, and I will send those of them that escape unto the nations, to Tarshish, Pul, and Lud, that draw the bow, to Tubal, and Javan, to the coastlands afar off, that have not heard my fame, neither have seen my glory; and they shall declare my glory among the Gentiles. And they shall bring all your brethren for an offering unto the LORD out of all nations upon horses, and in chariots, and in litters, and upon mules, and upon swift beasts, to my holy mountain Jerusalem, saith the LORD, as the children of Israel bring an offering in a clean vessel into the house of the LORD. Isaiah 66:21 And I will also take of them for priests and for Levites, saith the LORD. Isaiah 66:22 For as the new heavens and the new earth, which I will make, shall remain before me, saith the LORD, so shall your seed and your name remain. Isaiah 66:23 And there shall be month after month, and Sabbath after Sabbath: and all flesh shall come to adore before my face, saith the Lord. Isaiah 66:24 And they shall go forth, and look upon the carcasses of the men that have transgressed against me (PRACTICED LAWLESSNESS): for their worm shall not die, neither shall their fire be quenched; and they shall be an abhorring unto all flesh.
New Heaven and New Earth in the Book of Revelation
A New Heaven and a New Earth
Then I saw a new heaven and a new earth; for the first heaven and the first earth passed away, and there is no longer any sea. 2And I saw the holy city, new Jerusalem, coming down out of heaven from God, made ready as a bride adorned for her husband.
Isaiah tells us that the Father's Law is to apply in the Kingdom of Heaven: from keeping His dietary Law, providing offerings, the use of the Levitical priesthood to administer His Law, to keeping His Sabbaths and ALL those who transgressed His Laws (i.e., practiced LAWLESSNESS) will be cast into the lake of fire.