Job 3:12

“Why did the knees prevent me? etc.] Not of the mother, as Jarchi, but of the midwife, who received him into her lap, and nourished and cherished him, washed him with water, salted, and swaddled him; or it may be of his father, with whom it was usual to take the child on his knees as soon as born, (see <015023>Genesis 50:23); which custom obtained among the Greeks and Romans f113; hence the goddess Levana f114 had her name, causing the father in this way to own his child; his concern is, that he did not fall to the ground as he came out of his mother’s womb, and with that fall die; and that he was prevented from falling by the officious knees of the midwife; that he was not suffered to fall,…”

“Why did the knees prevent me?--Old English for "anticipate my wants." The reference is to the solemn recognition of a new-born child by the father, who used to place it on his knees as his own, whom he was bound to rear (Gen 30:3; Gen 50:23; Isa 66:12).”

“Why did the knees prevent me? - That is, the lap of the nurse or of the mother, probably the latter. The sense is, that if he had not been delicately and tenderly nursed, he would have died at once. He came helpless into the world, and but for the attention of others he would have soon died. Jahn supposes (Archae section 161) that it was a common custom for the father, on the birth of a son, to clasp the new-born child to his bosom, while music was heard to sound, and by this ceremony to declare it as his own. That there was some such recognition of a child or expression of paternal regard, is apparent from Genesis 50:23. Probably, however, the whole sense of the passage is expressed by the…”

“The knees - Why did the midwife or nurse receive and lay me upon her knees, and not suffer me to fall upon the bare ground, 'till death had taken me out of this miserable world, into which their cruel kindness hath betrayed me? Why did the breasts prevent me from perishing through hunger, or supply me that should have what to suck? Thus Job unthankfully despises these wonderful mercies of God towards poor helpless infants. Job 3:14”

“the knees: Gen 30:3, Gen 50:23; Isa 66:12; Eze 16:4, Eze 16:5 Job 3:13”