These verses reveal that angels ("sons of God,"v. 6), including Satan, periodically report to God on their activities. Satan was doing then what he still does today, namely, "seeking whom he may devour"(1 Pet. 5:8).25
Satan's accusation (vv. 9-11) articulates one of the main questions of this book: why do righteous people such as Job live upright lives? Satan said Job did so because Job had learned that there is an inevitable connection between deed and state of being (i.e., godliness results in prosperity). This idea, that the relationship between God and man rests on retribution--we always reap in kind what we sow--is one that Job held. However, his fear (reverential trust) of God ran deeper than Satan realized.
Satan determined to prove that Job would not obey God if he got nothing in return. He believed selfishness prompted Job's obedience rather than love. Satan also believed that God would not get worship from Job if He stopped blessing him.
"Cynicism is the essence of the satanic. The Satan believes nothing to be genuinely good--neither Job in his disinterested piety nor God in His disinterested generosity."26
Why does God allow Satan to test believers? He allowed Satan to test Job to silence Satan and to strengthen Job's character (cf. James 1:1-18).
"The primary purpose of Job's suffering, unknown to him, was that he should stand before men and angels as a trophy of the saving might of God . . ."27
The Sabeans (v. 15) may have come from a region in southwest Arabia called Sheba or from the town of Sheba located in upper Arabia (cf. Gen. 10:7; 25:3). The Chaldeans (v. 17) came from Mesopotamia to the north.
Tearing one's robe (v. 20) typically expressed great grief in the ancient Near East. Shaving the head (v. 20) evidently symbolized the loss of personal glory. Hair in the ancient world was a symbol of one's glory (cf. 2 Sam. 14:26). Job apparently fell to the ground to worship God (v. 20). A mother's womb is a figure for the earth (v. 21; cf. Ps. 139:15; Eccles. 5:15; 12:7).
Job's recognition of Yahweh's sovereignty (v. 21) was a key to his passing his test. In some respects he regarded God as an equal (cf. 9:33), but underneath he knew God was his sovereign. This conception of God is one that Job never lost, though many people who go through trials do.
"Job's exclamation is the noblest expression to be found anywhere of a man's joyful acceptance of the will of God as his only good. A man may stand before God stripped of everything that life has given him, and still lack nothing."28
Job grieved but worshipped. These two activities are not incompatible. He saw God's hand in the events of his life. Moreover he had a proper perspective on his possessions. His faith did not relieve his agony; it caused it.