John 13:11

for he knew who would betray him; therefore, said he, you are not every one of you clean.

John 2:25

and he did not want any information concerning man: for he knew of himself the secret of their hearts.

Matthew 26:24-25

the son of man is going to die, pursuant to the scripture: but wo to that man by whom the son of man is betrayed: it had been better for that man, if he had never been born.

John 6:64-71

but there are some of you who do not believe. (for Jesus knew from the beginning, who they were that did not believe, and who should betray him.)

John 13:2

while they were at supper, (the devil having now put it into the heart of Judas Iscariot, Simon's son, to betray him) Jesus,

John 13:18

I say not this of you all; for I know whom I have chosen: and that passage of the scripture must be fulfilled, "He that eateth bread with me, hath lift up his heel against me."

John 13:21

When Jesus utter'd these words, he was troubled in spirit, and said without disguise, I assure you, that one of you shall betray me.

John 13:26

Jesus answered, he it is, to whom I shall give a sop, when I have made it. and when he had made the sop, he gave it to Judas Iscariot, the son of Simon.

John 17:12

by your authority I have kept them, during my being with them in the world: those that you gave me I have kept, and not one of them is lost, except the son of perdition: according as the scripture foretold.

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 say not this of you all; for I know whom I have chosen: and that passage of the scripture must be fulfilled, "He that eateth bread with me, hath lift up his heel against me."
John 2:25
and he did not want any information concerning man: for he knew of himself the secret of their hearts.
John 6:64
but there are some of you who do not believe. (for Jesus knew from the beginning, who they were that did not believe, and who should betray him.)
John 17:12
by your authority I have kept them, during my being with them in the world: those that you gave me I have kept, and not one of them is lost, except the son of perdition: according as the scripture foretold.
Matthew 26:24
the son of man is going to die, pursuant to the scripture: but wo to that man by whom the son of man is betrayed: it had been better for that man, if he had never been born.