1. Christ judges those who do not believe in Him. (Ezk 6:7-10)
    Jn 3:16-17, Rom 10:9, 2 Tim 4:1-2, Jn 5:26-27, Acts 10:42-43,
    1 Cor 3:11-15, 2 Cor 5:10, Acts 17:30-31, Rev 20:12-15

In the Old Testament, God said that He judges those who do not believe in Him. Only then do people know that God is God. (Ezekiel 6:7-10)

Ezekiel 6:7 And the slain shall fall in the midst of you, and ye shall know that I am the Lord.
8 Yet will I leave a remnant, that ye may have some that shall escape the sword among the nations, when ye shall be scattered through the countries.
9 And they that escape of you shall remember me among the nations whither they shall be carried captives, because I am broken with their whorish heart, which hath departed from me, and with their eyes, which go a whoring after their idols: and they shall lothe themselves for the evils which they have committed in all their abominations.
10 And they shall know that I am the Lord, and that I have not said in vain that I would do this evil unto them.

God gave Jesus the Son of God the authority to judge the world. (John 5:26-27, Acts 10:42-43, 1 Corinthians 3:11-15, 2 Corinthians 5:10, Acts 17:30-31, Revelation 20:12-15)

John 5:26 For as the Father hath life in himself; so hath he given to the Son to have life in himself;
27 And hath given him authority to execute judgment also, because he is the Son of man.

Acts 10:42 And he commanded us to preach unto the people, and to testify that it is he which was ordained of God to be the Judge of quick and dead.
43 To him give all the prophets witness, that through his name whosoever believeth in him shall receive remission of sins.

1 Corinthians 3:11 For other foundation can no man lay than that is laid, which is Jesus Christ.
12 Now if any man build upon this foundation gold, silver, precious stones, wood, hay, stubble;
13 Every man’s work shall be made manifest: for the day shall declare it, because it shall be revealed by fire; and the fire shall try every man’s work of what sort it is.
14 If any man’s work abide which he hath built thereupon, he shall receive a reward.
15 If any man’s work shall be burned, he shall suffer loss: but he himself shall be saved; yet so as by fire.

2 Corinthians 5:10 For we must all appear before the judgment seat of Christ; that every one may receive the things done in his body, according to that he hath done, whether it be good or bad.

Acts 17:30 And the times of this ignorance God winked at; but now commandeth all men every where to repent:
31 Because he hath appointed a day, in the which he will judge the world in righteousness by that man whom he hath ordained; whereof he hath given assurance unto all men, in that he hath raised him from the dead.

Revelation 20:12 And I saw the dead, small and great, stand before God; and the books were opened: and another book was opened, which is the book of life: and the dead were judged out of those things which were written in the books, according to their works.
13 And the sea gave up the dead which were in it; and death and hell delivered up the dead which were in them: and they were judged every man according to their works.
14 And death and hell were cast into the lake of fire. This is the second death.
15 And whosoever was not found written in the book of life was cast into the lake of fire.

God did not send Christ to judge the world, but He sent Christ to this earth to save the world. (John 3:16-17)

John 3:16 For God so loved the world, that he gave his only begotten Son, that whosoever believeth in him should not perish, but have everlasting life.
17 For God sent not his Son into the world to condemn the world; but that the world through him might be saved.

Therefore, we must confess Jesus as Lord and Christ to be saved. (Romans 10:9)

Romans 10:9 That if thou shalt confess with thy mouth the Lord Jesus, and shalt believe in thine heart that God hath raised him from the dead, thou shalt be saved.

Also, we must tell everyone that Jesus is the Christ so that they can believe before they are judged. (2 Timothy 4:1-2)

2 Timothy 4:1 I charge thee therefore before God, and the Lord Jesus Christ, who shall judge the quick and the dead at his appearing and his kingdom;
2 Preach the word; be instant in season, out of season; reprove, rebuke, exhort with all long suffering and doctrine.