V.14-21 The people of Edom were descendants of Esau, Jacob’s brother. You remember that long before this, Jacob had deceived his father Isaac and stolen the birthright blessing belonging to Esau or Edom (Gen. 27). Now the descendants of these 2 men face each other! Israel must suffer for the deed of long before. We reap what we sow (Eccl. 3:15). But, to encourage you, don’t forget, He remembers also the good (Mark 9:41).
V.22-29 The chapter begins and ends with death. Now Aaron. Though Aaron didn’t act, he associated himself with Moses, and so shared the Lord’s displeasure. God is telling us that we are held responsible for our associations. Aaron’s son become: high priest.