John 19:11 Therefore the one who delivered Me to you has the greater sin.

Judas betrayed Jesus and directed the soldiers to where He was and indicated to them Who He was.
Jesus later called those actions the “greater sin.”
However, it is Pilate Jesus is standing before.
Herod, the Chief Priests, and the Sanhedrin all had a part in handing Jesus over to Pilate, the only one who could legally proclaim the death sentence.
Is it possible for someone to commit the “greater sin” today?
Not in the same way.
But you can betray, ignore, reject, spit at, sneer at, and make fun of Christ.
Everyone commits sin, that’s a simple truth from the Bible.
Gal 5:19-21 says adultery, fornication, uncleanness, lewdness, idolatry, sorcery, hatred, contentions, jealousies, outbursts of wrath, selfish ambitions, dissensions, heresies, envy, murders, drunkenness, revelries, and the like are sins of the flesh.
Which of these sins is the greater sin?
All of them are forgivable.
None of them are ever listed as the deciding factor in the final judgement.
The deciding factor is not having your name in the Lamb’s Book of Life.(Rev 20:15)
Therefore, the greater sin is unbelief and rejecting Jesus as your Savior.