Job 28:7

No bird of prey knows the way to it. No hawk's eye has ever seen it.

Job 11:6

and disclose to you the secrets of wisdom, for true wisdom has two sides. Know this: God has even forgotten some of your sin.

Job 28:21-23

It is hidden from the eyes of all the living, concealed from the birds in the air.

Job 38:19

Where is the way to the dwelling of light? And where does darkness reside?

Job 38:24

What is the way to the place where the lightning is dispersed, or the place where the east winds are scattered over the earth?

Romans 11:33

O the depth of the riches both of the wisdom and knowledge of God! How unsearchable are his judgments. His ways are beyond human understanding!

Treasury of Scripture Knowledge

Summary

There is a path which no fowl knoweth, and which the vulture's eye hath not seen:

Bible References

A path

Job 28:21
It is hidden from the eyes of all the living, concealed from the birds in the air.
Job 11:6
and disclose to you the secrets of wisdom, for true wisdom has two sides. Know this: God has even forgotten some of your sin.
Job 38:19
Where is the way to the dwelling of light? And where does darkness reside?
Romans 11:33
O the depth of the riches both of the wisdom and knowledge of God! How unsearchable are his judgments. His ways are beyond human understanding!