Job 1:5

When the days.. were gone about] i.e. when all seven sons had given their feast. It appears that it was Job's pious custom to gather together his children at stated intervals that atonement might be made for any neglect of God at their feasts. He sanctified them, i.e. prepared them by ablutions, etc., for taking part in the sacrifices he afterwards offered (cp. Genesis 35:2; Exodus 19:10; Leviticus 9:7; 1 Samuel 16:5). Here we have an instance of the piety alluded to in Job 1:1. Burnt offerings] Observe that it was not the sin offering of the Mosaic Law which Job offered, but a burnt offering wholly given to God, which was common to many peoples (cp. Numbers 23 Micah 6:5). As head of the family Job acted as priest: cp. Jethro (Exodus 2:16; Exodus 3:1). Cursed] RV 'renounced'; 'blasphemed 'or 'blamed 'may be better.

6-12. The first interview between God and Satan. The scene in heaven is based on the conceptions of the spirit world prevailing in the author's time (cp. 1 Kings 22:19; Zechariah 3:1), and introduced by him to explain the origin and purpose of Job's trials. See last section of Intro.