In the days of my youth, i.e. in my former and flourishing days, which he calls the days of youth, because those are commonly the times of mirth and comfort, as old age is called evil days, Ecclesiastes 12:1; when there was a secret blessing of God upon me and my family, protecting, directing, and succeeding us in all our affairs, which the devil observed, Job 1:10; whereas now there is a visible curse of God upon me and mine.
Related Commentaries of Job 29:4
Job 29:4
4 As I was in the days of my youth, when the secret of God was upon my tabernacle;