John 13:11

(For he knew who would betray him; therefore he said, Ye are not all clean.)

John 2:25

and because he had no need that any man should testify respecting man; for he knew what was in man.

Matthew 26:24-25

The Son of man indeed is departing, as it is written of him: but wo to that man, by whom the Son of man is betrayed! well had it been for that man if he had never had a being.

John 6:64-71

But there are some of you who do not believe. For Jesus knew from the beginning who they were who did not believe, and who the person was that should betray him.

John 13:2

And supper being served, (the devil having now injected into the heart of Judas Iscariot, the son of Simon, that he should betray him;)

John 13:18

I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled, He that eateth bread with me, hath lift up his heel against me.

John 13:21

As Jesus was speaking these words, he was greatly agitated in spirit, and testified, and said, Verily, verily, I say unto you, that one of you shall betray me.

John 13:26

Jesus answered, It is he to whom I shall give this morsel of bread, when I have dipped it. And dipping the morsel of bread, he gave it unto Judas Iscariot, the son of Simon.

John 17:12

When I was with them in the world, I preserved them by thy name: those whom thou hast given me have I guarded, and not one of them is perished, except the son of perdition; that the scripture might be fulfilled.

Treasury of Scripture Knowledge

Summary

For he knew who should betray him; therefore said he, Ye are not all clean.

Bible References

General references

John 13:18
I speak not of you all: I know whom I have chosen: but that the scripture may be fulfilled, He that eateth bread with me, hath lift up his heel against me.
John 2:25
and because he had no need that any man should testify respecting man; for he knew what was in man.
John 6:64
But there are some of you who do not believe. For Jesus knew from the beginning who they were who did not believe, and who the person was that should betray him.
John 17:12
When I was with them in the world, I preserved them by thy name: those whom thou hast given me have I guarded, and not one of them is perished, except the son of perdition; that the scripture might be fulfilled.
Matthew 26:24
The Son of man indeed is departing, as it is written of him: but wo to that man, by whom the Son of man is betrayed! well had it been for that man if he had never had a being.