Acts 21:24

and join in their expences, that they may shave their head: and that all may know, that there is nothing in what they have heard of thee; but thou thyself walkest according to the law.

Romans 11:7-10

What then? Israel hath not obtained that which he sought: but the elect have obtained it, and the rest were blinded,

Romans 11:25

For I would not have you, brethren, to be ignorant of this mystery, (least ye should be wise in your own eyes) that blindness in part is befallen Israel, till the fulness of the Gentiles be come in.

2 Corinthians 4:3-4

And if our gospel also be veiled, it is to those that perish;

Treasury of Scripture Knowledge

Summary

And thou shalt grope at noonday, as the blind gropeth in darkness, and thou shalt not prosper in thy ways: and thou shalt be only oppressed and spoiled evermore, and no man shall save thee.

Bible References

Grope

Romans 11:7
What then? Israel hath not obtained that which he sought: but the elect have obtained it, and the rest were blinded,
2 Corinthians 4:3
And if our gospel also be veiled, it is to those that perish;