With his fatness: this is mentioned as the reason of his insolent carriage towards God, because he was fat, i.e. rich, and potent, and successful, as that expression signifies, Deuteronomy 32:15 Psalms 78:31 Jeremiah 46:21. His great prosperity made him proud and secure, and regardless of God and men. Maketh collops of fat on his flanks; his only care and study is to pamper and please himself, and obey his own mind and lusts, and in defence and pursuance of them he contends with God.
Related Commentaries of Job 15:27
Job 15:27
27 Because he covereth his face with his fatness, and maketh collops of fat on his flanks.