Their houses are safe from fear - Margin, "peace from." The friends of Job had maintained just the contrary; see Job 20:27-28; Job 15:21-24. Their idea was, that the wicked man would never be free from alarms. Job says, that they lived in security and peace, and that their houses are preserved from the intrusions of evil-minded people.
Neither is the rod of God upon them - The "rod" is an emblem of punishment. The idea is, that they were free from the chastisements which their sins deserved. There can be no doubt that there are cases enough in which the wicked live in security, to justify Job in all that he here affirms, as there are instances enough in which the wicked are cut off for their sins. to make what his friends said plausible. The truth is, good and evil are intermingled. There is a "general" course of events by which the wicked are involved in calamity in this life, and the righteous are prospered; but still, there are so many exceptions as to show the necessity of a future state of rewards and punishments. To us, who look to that future world, all is clear. But that view of the future state of retribution was not possessed by Job and his friends.

Neither is the rod of God upon them - They are not afflicted as other men.

Their houses are safe from fear,.... Of enemies besetting them, entering into them, and pillaging and plundering them; of thieves and robbers breaking into them, and carrying off their substance: or "their houses are peace" (o); their families live in peace among themselves, or enjoy all prosperity, which the word peace frequently signifies; they have peace and prosperity within doors and are free "from fear", or devoid of fear, from anything without;
neither is the rod of God upon them; neither his rod of chastisement, which is upon his own people, and with which he scourges every son, though in love for their good, and which was now upon Job, Job 9:34; nor any sore judgment, as famine, plague, sword, or any other; no, not even the common afflictions and troubles that men are exercised with.
(o) "pax", Montanus, Junius & Tremellius, Schultens.

Literally, "peace from fear"; with poetic force. Their house is peace itself, far removed from fear. Opposed to the friends' assertion, as to the bad (Job 15:21-24; Job 20:26-28), and conversely, the good (Job 5:23-24).