'Eye Has Not Seen' in the Bible

“The path [deep within] no bird of prey knows,And the falcon’s eye has not caught sight of it.

but just as it is written [in Scripture],“Things which the eye has not seen and the ear has not heard,And which have not entered the heart of man,All that God has prepared for those who love Him [who hold Him in affectionate reverence, who obey Him, and who gratefully recognize the benefits that He has bestowed].”