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Christian Universalism is the Bible truth, my friend :)

1 John 2:2 Christ "is the propitiation for our sins, and not for ours only but also for the whole world."

Will Jesus save the whole world? Yes!

Genesis 22:18 All nations on earth will be blessed through Abraham’s offspring.

Will all nations be blessed? Yes!

HABAKKUK 2:14 For the earth will be filled with the knowledge of the glory of the Lord, as the waters cover the sea.

Will the earth be filled with the glory of the Lord? Yes!

Thus, Jesus will save the whole world, blessing them with knowledge, faith in the Lord.

aka

The entire world will become believers in Christ and thus the entire world will go to Heaven.

Eventually, all people will have faith in Christ and be saved.

If someone dies and does not have faith, they go to Sheol. The Lord will come down to Sheol and convince those who have not believed in Him to believe. Thus, the city of New Jerusalem has leaves for the healing of all nations.