Per the Nicene Creed:
To judge the living and the dead
Per the Holy Bible:
And I saw a great white throne and the one sitting on it. The earth and sky fled from his presence, but they found no place to hide. I saw the dead, both great and small, standing before God’s throne. And the books were opened, including the Book of Life. And the dead were judged according to what they had done, as recorded in the books. The sea gave up its dead, and death and the grave gave up their dead. And all were judged according to their deeds. Then death and the grave were thrown into the lake of fire. This lake of fire is the second death. And anyone whose name was not found recorded in the Book of Life was thrown into the lake of fire.
We apostles are witnesses of all he did throughout Judea and in Jerusalem. They put him to death by hanging him on a cross, but God raised him to life on the third day. Then God allowed him to appear, not to the general public, but to us whom God had chosen in advance to be his witnesses. We were those who ate and drank with him after he rose from the dead. And he ordered us to preach everywhere and to testify that Jesus is the one appointed by God to be the judge of all — the living and the dead.
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Truth is...people nowadays don't much like the word "judge". "Judge not lest you be judged" (Matthew 7:1) is a far-more-quoted verse than even John 3:16. We don't like the idea of being held accountable for our actions. But the really good news is that when Jesus judges, the action of submitting ourselves to His Lordship, no matter how imperfectly we may live it out, trumps all the sins and mistakes we ever make. He won't pretend that we've never done anything wrong, but he will apply HIS payment of OUR penalty to our ledger.
"He has removed our sins as far from us as the east is from the west."