Blessed me, i.e. given him occasion to bless and praise me, and to pray to God to bless me for covering them; the loins being put synecdochically for the whole body: see the like expression Deuteronomy 24:13, and compare Genesis 4:10 Luke 16:9. With the fleece of my sheep; with clothing made of my wool.
Related Commentaries of Job 31:20
Job 31:20
20 If his loins have not blessed me, and if he were not warmed with the fleece of my sheep;