John 12:39

For this reason they could not believe, because Isaiah had said again;

John 5:44

How can ye believe, who receiving honour one from another, seek not the honour which cometh from God alone?

John 6:44

No man can come to me, except the Father who hath sent me draw him: and I will raise him up at the last day.

John 10:38

But if I do, though ye believe not me, believe the works: that ye may know, and believe, that the Father is in me, and I in him.

2 Peter 2:14

having eyes full of adultery, and insatiable of sin; ensnaring souls of no stability; having a heart practised in all the wiles of covetousness; children for a curse:

Treasury of Scripture Knowledge

Summary

Therefore they could not believe, because that Esaias said again,

General references

Bible References

They

John 5:44
How can ye believe, who receiving honour one from another, seek not the honour which cometh from God alone?
John 6:44
No man can come to me, except the Father who hath sent me draw him: and I will raise him up at the last day.
John 10:38
But if I do, though ye believe not me, believe the works: that ye may know, and believe, that the Father is in me, and I in him.
2 Peter 2:14
having eyes full of adultery, and insatiable of sin; ensnaring souls of no stability; having a heart practised in all the wiles of covetousness; children for a curse:

General references

John 1:5
And the light shineth in darkness; and the darkness did not comprehend it.
John 9:18
Then the Jews did not believe that he had been blind, and received sight, until that they had called the parents of him who had received sight.
John 10:37
If I do not the works of my Father, believe me not.