John 13:11

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

John 2:25

because he knew all men, And needed not that any should testify of man; for he knew what was in man.

Matthew 26:24-25

The Son of man goeth as it is written of him: but wo to that man, by whom the Son of man is betrayed: it had been good for that man if he had not been born.

John 6:64-71

But there are some of you who believe not. (For Jesus had known from the beginning, who they were that believed not, and who would betray him.)

John 13:2

And while they were at supper (the devil having now put it into the heart of Judas Iscariot, the son of Simon,

John 13:18

I know whom I have chosen, that the scripture may be fulfilled, He that eateth bread with me, hath lift up his heel against me.

John 13:21

Jesus having said this, was troubled in spirit, and testified, and said, Verily I say unto you, one of you will betray me.

John 13:26

Jesus answered, It is he to whom I shall give the sop when I have dipped it. And having dipped the sop, he giveth it to Judas Iscariot, the son of Simon.

John 17:12

While I was with them in the world, I kept them thro' thy name. Those whom thou hast given me I have guarded, and none of them is lost, but 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 know whom I have chosen, that the scripture may be fulfilled, He that eateth bread with me, hath lift up his heel against me.
John 2:25
because he knew all men, And needed not that any should testify of man; for he knew what was in man.
John 6:64
But there are some of you who believe not. (For Jesus had known from the beginning, who they were that believed not, and who would betray him.)
John 17:12
While I was with them in the world, I kept them thro' thy name. Those whom thou hast given me I have guarded, and none of them is lost, but the son of perdition, that the scripture might be fulfilled.
Matthew 26:24
The Son of man goeth as it is written of him: but wo to that man, by whom the Son of man is betrayed: it had been good for that man if he had not been born.