Israel is still in sin even till today
Israels sins will be atoned when the redeemer comes from Zion, to take away her sins (when she repents)
Jesus has already atoned for their sins and the rest of the worlds.
Many Israelites have already repented and had their sins washed away.
The very foundation of the church is Israelite.
Acts 17
30 Therefore God overlooked
and disregarded the
former ages of ignorance;
but now He commands all
people everywhere to repent [that is, to change their old way of thinking, to regret their past sins, and to seek God’s purpose for their lives], 31 because He has set a day when He will judge the
inhabited world in righteousness by a Man whom He has appointed
and destined for that task, and He has provided credible proof to everyone by raising Him from the dead.”
Rev 21
9 Then one of the seven angels who had the seven bowls filled with the seven final plagues came and spoke with me, saying, “Come here, I will show you the bride, the wife of the Lamb.”
10 And he carried me away in the Spirit to a vast and lofty mountain, and showed me the holy (sanctified) city of Jerusalem coming down out of heaven from God, 11 having God’s glory [filled with His radiant light]. The brilliance of it resembled a rare and very precious jewel, like jasper, shining and clear as crystal. 12 It had a massive and high wall, with twelve [large] gates, and at the gates [were stationed] twelve angels;
and on the gates the names of the twelve tribes of the sons of Israel were written. 13 On the east side [there were] three gates, on the north three gates, on the south three gates, and on the west three gates. 14 And the wall of the city had twelve foundation stones, and on them the twelve names of the twelve apostles of the Lamb (Christ).
Heb 12
18 For you have not come [as did the Israelites in the wilderness] to
a mountain that can be touched and to a blazing fire, and to gloom and darkness and a raging windstorm, 19 and to the blast of a trumpet and a sound of words [such that] those who heard it begged that nothing more be said to them. 20 For they could not bear the command, “If even a wild animal touches the mountain, it will be stoned [to death].” 21 In fact, so terrifying was the sight, that Moses said, “I am filled with fear and trembling.”
22 But you have come to Mount Zion and to the city of the living God, the heavenly Jerusalem, and to myriads of angels [in festive gathering], 23 and to the general assembly and assembly of the firstborn who are registered [as citizens] in heaven, and to God, who is Judge of all, and to the spirits of the righteous (the redeemed in heaven) who have been made perfect [bringing them to their final glory], 24 and to Jesus, the Mediator of a new covenant [uniting God and man], and to the sprinkled blood, which speaks [of mercy], a better and nobler and more gracious message than the blood of Abel [which cried out for vengeance].
The Unshaken Kingdom
25 See to it that you do not refuse [to listen to] Him who is speaking [to you now]. For if those [sons of Israel] did not escape when they refused [to listen to] him who warned them on earth [revealing God’s will], how much less will we escape if we turn our backs on Him who warns from heaven? 26 His voice shook the earth [at Mount Sinai] then, but now He has given a promise, saying, “Yet once more I will shake not only the earth, but also the [starry] heaven.” 27 Now this [expression], “Yet once more,” indicates the removal
and final transformation of all those things which can be shaken—that is, of that which has been created—so that those things which cannot be shaken may remain. 28 Therefore, since we receive a kingdom which cannot be shaken, let us show gratitude, and offer to God pleasing service
and acceptable worship with reverence and awe; 29 for our God is [indeed] a consuming fire.