So I thought: ‘I will die in my nest and multiply my days as the sand.
That which crowned Job's prosperity was the pleasing prospect he had of the continuance of it. Though he knew, in general, that he was liable to trouble, and therefore was not secure (Job 3:26, I was not in safety, neither had I rest), yet he had no particular occasion for fear, but as much reason as ever any man had to count upon the lengthening out of his tranquility. I.
Commenting on Job 29:18-25
Then I said, I shall die in my nest,.... Job, amidst all his prosperity, knew he should die, death and the grave being appointed for all men; and he often thought of it, and of the manner of it; but he concluded that death was as yet some distance from him, as appears from the following clause; and that, when the time was come, he...
I said--in my heart (Psa 30:6). in--rather, "with my nest"; as the second clause refers to long life. Instead of my family dying before me, as now, I shall live so long as to die with them: proverbial for long life. Job did realize his hope (Job 42:16). However, in the bosom of my family, gives a good sense (Num 24:21; Oba 1:4). Use "nest" for a secure dwelling.