Jesus cried and said,
“He that believeth on Me, believeth not on Me, but on Him that sent Me. And he that seeth Me seeth Him that sent Me. I am come a light into the world, that whosoever believeth on Me should not abide in darkness. And if any man hear My words, and believe not, I judge him not: for I came not to judge the world, but to save the world. He that rejecteth Me, and receiveth not My words, hath one that judgeth him: the word that I have spoken, the same shall judge him in the last day. For I have not spoken of Myself; but the Father which sent Me, He gave Me a commandment, what I should say, and what I should speak. And I know that His commandment is life everlasting: whatsoever I speak therefore, even as the Father said unto Me, so I speak.”
John 12:44-50
Those who believe in Jesus for salvation, have believed His words, the things He has said and taught. Those words are true.
Jesus said that He did not come into the world to judge the unbelieving of this world, but He came to save the world. Which He did by laying down His own life for us.
In the judgment of the last days those who did not believe will face the judgment of the words Jesus spoke, and by the whole of the word of God.
For those who believe are trusting Him, His commandment is everlasting life. He has paid our debt for sin, by His own death on the cross, being buried, and His resurrection from the grave and death.
If you have not yet believed Him, call out to Him today for salvation, believing every word He has spoken. He will hear you and He will save.
The judge of unbelievers is the words Jesus has spoken.