Internal evidence seems to fix the date of Obadiah's ministry in the reign of the bloody Athaliah # 2Ki 8:16-26 If this be true, and if the ministry of Joel was during the reign of Joash, then Obadiah is chronologically first of the writing prophets, and first to use the formula, "the day of the Lord." (Cf.) ¯ See Note "Joe 1:4"
The book is in four parts:
Edom's humiliation, vs. 1-9. The crowning sin of Edom, vs. 10-14. The future visitation of Edom in the day of the Lord, vs. 15,16 (Isa. 34., 63.1-6). The inclusion of Edom in the future kingdom, vs. 17-21
