John Trapp on Job 39:27

Verſe 27 Doth the Eagle mount up at thy command?] Mount plum up (which no bird elſe can do) to an infinite height, even out of ſight; not without an eye ſtill to her prey, which by this means ſhe ſpyes ſooner, and ſeizeth upon better. A fit embleme of an hypocrite, who ſeemes to ſoar aloft, but it is for ſome ſelf and ſiniſter reſpect;Mat. 24. he ſeeketh not the Lord Jeſus Chriſt (as the ſincere hearted do) but his own belly, Rom. 16.18.

And make her neſt on high] Not in plaines, but on lofty tops, and inacceſſible Rocks, for the ſafety of her young ones. Of the nature of Eagles, read Ariſtotle, De Nat, Animal. lib. 9. cap. 32. and Pliny, lib. 3. cap. 10. They tell us, That there is an enmity between the Eagle and the Serpent; and becauſe the Serpent ſeeketh to deſtroy the young Eagles, ſhe ſetteth her neſt on high to ſafeguard them. And if any man ſeek to rob her neſt, ſhe doubteth not to aſſault him with her wings and talons. Formidable ſhe is to all birds ſave only the Hawk, who is able to deal with her if he can but avoid the firſt ſhock.