Charles Ellicott Commentary Job 29:4

"As I was in the ripeness of my days, When the friendship of God was upon my tent;" — Job 29:4 (ASV)

In the days of my youth. — Literally, my autumn: that is, in the ripeness, maturity of my days. He was then in the depth of winter. (Compare the words “in which it seemed always afternoon.”) Some suppose, however, that as with the ancient and modern Jews the year began with the autumn, it is used much in the same way as we use spring.

The secret of God. — Or, the counsel of God.