Joseph Benson's Commentary of the Old and New Testaments - Job 39:27-28
Job 39:27-28. Doth the eagle mount up at thy command? Fly directly upward till she be out of thy sight, which no other bird can do; and make her nest on high In the highest and inaccessible rocks: compare Jeremiah 49:16; Obadiah 1:4. She dwelleth upon the crag of the rock Which she doth partly for the security of herself and her young; and partly that she may thence have the better prospect to discern her prey, as it follows. read more
Albert Barnes' Notes on the Whole Bible - Job 39:30
Her young ones also suck up blood - The word used here (יעלעוּ ye‛âl‛û) occurs nowhere else in the Scriptures. It is supposed to mean, to sup up greedily; referring to the fact that the young ones of the eagle devour blood voraciously. They are too feeble to devour the flesh, and hence, they are fed on the blood of the victim. The strength of the eagle consists in the beak, talons, and wings; and such is their power, that they are able to convey animals of considerable size, alive, to their... read more