Yes, those who learn righteousness and obedience in Christ’s earthly kingdom and reach perfection of heart and mind will never again disobey and hence, will continue to live forever.
This opportunity will be open to all in Christ’s earthly kingdom – both those in the grave and those alive at the inauguration of Christ’s kingdom. Jesus said in John 5:29 (NASB): “Do not marvel at this; for an hour is coming, in which all who are in the tombs will hear His voice, (29) and will come forth; those who did the good deeds to a resurrection of life, those who committed the evil deeds to a resurrection of judgment.”
During the resurrection of judgment, men will be taught righteous and then judged according to that. Revelation 20:12-13 (NASB): “And I saw the dead, the great and the small, standing before the throne, and books were opened; and another book was opened, which is the book of life; and the dead were judged from the things which were written in the books, according to their deeds. (13) And the sea gave up the dead which were in it, and death and Hades gave up the dead which were in them; and they were judged, every one of them according to their deeds.”
Those who become obedient will live. The prophet Ezekiel writes in Ezek. 18:2-5,7-9 (NASB): “What do you mean by using this proverb concerning the land of Israel, saying, ‘The fathers eat the sour grapes, But the children’s teeth are set on edge’? (3) ‘As I live,’ declares the Lord GOD, ‘you are surely not going to use this proverb in Israel anymore. (4) Behold, all souls are Mine; the soul of the father as well as the soul of the son is Mine. The soul who sins will die. (5) But if a man is righteous and practices justice and righteousness, … (7) if a man does not oppress anyone, but restores to the debtor his pledge, does not commit robbery, but gives his bread to the hungry and covers the naked with clothing, (8) if he does not lend money on interest or take increase, if he keeps his hand from iniquity and executes true justice between man and man, (9) if he walks in My statutes and My ordinances so as to deal faithfully–he is righteous and will surely live,’ declares the Lord GOD.”
Ezekiel adds the following in Ezek. 18:20-23 (NASB) regarding Christ’s kingdom: “‘The person who sins will die. The son will not bear the punishment for the father’s iniquity, nor will the father bear the punishment for the son’s iniquity; the righteousness of the righteous will be upon himself, and the wickedness of the wicked will be upon himself. (21) But if the wicked man turns from all his sins which he has committed and observes all My statutes and practices justice and righteousness, he shall surely live; he shall not die. (22) All his transgressions which he has committed will not be remembered against him; because of his righteousness which he has practiced, he will live. (23) Do I have any pleasure in the death of the wicked,’ declares the Lord GOD, ‘rather than that he should turn from his ways and live? ‘”
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