Job 28:7

"[It is] a path a bird of prey does not know and [the] black kite's eye has not seen.

Job 11:6

and [that] he would tell you [the] secrets of wisdom, for {insight has many sides}. And know that God {on your behalf} has forgotten {some of} your guilt.

Job 28:21-23

It is hidden from [the] eyes of all living, and it is concealed from [the] birds of the heaven.

Job 38:19

"Where then [is] the way [where] [the] light dwells? And where then [is] its place,

Job 38:24

Where then [is] the way [where] [the] light is distributed, [where] he scatters [the] east wind upon [the] earth?

Romans 11:33

Oh, the depth of the riches and the wisdom and the knowledge of God! How unsearchable [are] his judgments and [how] incomprehensible [are] his ways!

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 living, and it is concealed from [the] birds of the heaven.
Job 11:6
and [that] he would tell you [the] secrets of wisdom, for {insight has many sides}. And know that God {on your behalf} has forgotten {some of} your guilt.
Job 38:19
"Where then [is] the way [where] [the] light dwells? And where then [is] its place,
Romans 11:33
Oh, the depth of the riches and the wisdom and the knowledge of God! How unsearchable [are] his judgments and [how] incomprehensible [are] his ways!