Job 28:21

Seeing it is hid from the eyes of all living, and kept close from the fowls of the air.

Ver. 21. Seeing it is hid from the eyes of all living] As hath been before set forth, Job 28:13. They that see most into it see but in part, and must needs say, that the greatest part of their knowledge is the least part of their ignorance, Maxima pars eorum quae scimus est minima pars eorum quae nescimus. Something they know of his revealed will, but nothing at all of his secret. Whereunto we may add, that there are many occult qualities in nature, the reason whereof the wisest men understand not.

And kept close from the fowls of the air] Which yet fly very high, and seem to touch the clouds of heaven; as the eagle, which delighteth in high flying. Some will have the angels (elsewhere set forth as winged creatures) to be here meant; who, although they stand always in God's presence, and see much of his majesty, yet not at all nothing near, Isaiah 6:2,3, they cover their faces with their wings, as with a double scarf (as not able to behold his glory), and make their addresses unto him with greatest self-abasements.