Acts 21:24

them take with thee, be purified with them, and be at the same expence as they, that they may shave their heads: and all men will know that there is no truth in the things reported of thee, but that thou thyself walkest orderly and observest the law.

Romans 11:7-10

What then is the result? Israel hath not obtained that which it seeketh; but the election hath obtained it, and the rest were blinded,

Romans 11:25

For I would not that you should be ignorant, brethren, of this mystery, lest ye should be wise in your own conceits; that blindness in part is come on Israel, until the fulness of the Gentiles be come in.

2 Corinthians 4:3-4

And if now our gospel be hid, it is hid from those who are lost:

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 is the result? Israel hath not obtained that which it seeketh; but the election hath obtained it, and the rest were blinded,
2 Corinthians 4:3
And if now our gospel be hid, it is hid from those who are lost: